diff --git a/gui/input.go b/gui/input.go
index fd2c533..fb57eb9 100644
--- a/gui/input.go
+++ b/gui/input.go
@@ -1,6 +1,10 @@
 package gui
 
-import "github.com/go-gl/glfw/v3.2/glfw"
+import (
+	"fmt"
+
+	"github.com/go-gl/glfw/v3.2/glfw"
+)
 
 // send typed runes straight through to the pty
 func (gui *GUI) char(w *glfw.Window, r rune) {
@@ -22,232 +26,260 @@ func (gui *GUI) key(w *glfw.Window, key glfw.Key, scancode int, action glfw.Acti
 
 		gui.logger.Debugf("KEY PRESS: key=0x%X scan=0x%X", key, scancode)
 
-		switch true {
+		modStr := ""
 
+		switch true {
+		case modsPressed(mods, glfw.ModControl, glfw.ModShift, glfw.ModAlt):
+			modStr = "8"
+		case modsPressed(mods, glfw.ModControl, glfw.ModAlt):
+			modStr = "7"
 		case modsPressed(mods, glfw.ModControl, glfw.ModShift):
+			modStr = "6"
 			switch key {
 			case glfw.KeyV:
 				if s, err := gui.window.GetClipboardString(); err == nil {
 					_ = gui.terminal.Paste([]byte(s))
 				}
+				return
 			case glfw.KeySemicolon:
 				gui.config.Slomo = !gui.config.Slomo
+				return
 			}
 		case modsPressed(mods, glfw.ModControl):
+			modStr = "5"
 			switch key {
 			case glfw.KeyC: // ctrl^c
 				gui.logger.Debugf("Sending CTRL^C")
 				gui.terminal.Write([]byte{0x3}) // send EOT
+				return
 			}
-		default: // no mods
+		case modsPressed(mods, glfw.ModAlt, glfw.ModShift):
+			modStr = "4"
+		case modsPressed(mods, glfw.ModAlt):
+			modStr = "3"
+		case modsPressed(mods, glfw.ModShift):
+			modStr = "2"
 
-			switch key {
-			case glfw.KeyF1:
+		}
+
+		switch key {
+		case glfw.KeyF1:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'O',
+				'P',
+			})
+		case glfw.KeyF2:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'O',
+				'Q',
+			})
+		case glfw.KeyF3:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'O',
+				'R',
+			})
+		case glfw.KeyF4:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'O',
+				'S',
+			})
+		case glfw.KeyF5:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'1', '5', '~',
+			})
+		case glfw.KeyF6:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'1', '7', '~',
+			})
+		case glfw.KeyF7:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'1', '8', '~',
+			})
+		case glfw.KeyF8:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'1', '9', '~',
+			})
+		case glfw.KeyF9:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'2', '0', '~',
+			})
+		case glfw.KeyF10:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'2', '1', '~',
+			})
+		case glfw.KeyF11:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'2', '3', '~',
+			})
+		case glfw.KeyF12:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'2', '4', '~',
+			})
+		case glfw.KeyInsert:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'2', '~',
+			})
+		case glfw.KeyDelete:
+			gui.terminal.Write([]byte{
+				0x1b,
+				'[',
+				'3', '~',
+			})
+		case glfw.KeyHome:
+			if modStr == "" {
+				gui.terminal.Write([]byte("\x1b[1~"))
+			} else {
+				gui.terminal.Write([]byte(fmt.Sprintf("\x1b[1;%s~", modStr)))
+			}
+		case glfw.KeyEnd:
+			if modStr == "" {
+				gui.terminal.Write([]byte("\x1b[4~"))
+			} else {
+				gui.terminal.Write([]byte(fmt.Sprintf("\x1b[4;%s~", modStr)))
+			}
+		case glfw.KeyPageUp:
+			if modStr == "" {
+				gui.terminal.Write([]byte("\x1b[5~"))
+			} else {
+				gui.terminal.Write([]byte(fmt.Sprintf("\x1b[5;%s~", modStr)))
+			}
+		case glfw.KeyPageDown:
+			if modStr == "" {
+				gui.terminal.Write([]byte("\x1b[6~"))
+			} else {
+				gui.terminal.Write([]byte(fmt.Sprintf("\x1b[6;%s~", modStr)))
+			}
+		case glfw.KeyEscape:
+			if gui.terminal.IsApplicationCursorKeysModeEnabled() {
+				gui.terminal.Write([]byte{
+					0x1b,
+				})
+			} else {
+				gui.terminal.Write([]byte{
+					0x1b,
+					'[',
+					0x1b,
+				})
+			}
+		case glfw.KeyTab:
+			if gui.terminal.IsApplicationCursorKeysModeEnabled() {
 				gui.terminal.Write([]byte{
 					0x1b,
 					'O',
-					'P',
+					'I',
 				})
-			case glfw.KeyF2:
+			} else {
+				gui.terminal.Write([]byte{
+					0x09,
+				})
+			}
+		case glfw.KeyEnter:
+			if gui.terminal.IsApplicationCursorKeysModeEnabled() {
 				gui.terminal.Write([]byte{
 					0x1b,
 					'O',
-					'Q',
+					'M',
 				})
-			case glfw.KeyF3:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'O',
-					'R',
-				})
-			case glfw.KeyF4:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'O',
-					'S',
-				})
-			case glfw.KeyF5:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'1', '5', '~',
-				})
-			case glfw.KeyF6:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'1', '7', '~',
-				})
-			case glfw.KeyF7:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'1', '8', '~',
-				})
-			case glfw.KeyF8:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'1', '9', '~',
-				})
-			case glfw.KeyF9:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'2', '0', '~',
-				})
-			case glfw.KeyF10:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'2', '1', '~',
-				})
-			case glfw.KeyF11:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'2', '3', '~',
-				})
-			case glfw.KeyF12:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'2', '4', '~',
-				})
-			case glfw.KeyInsert:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'2', '~',
-				})
-			case glfw.KeyDelete:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'3', '~',
-				})
-			case glfw.KeyHome:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'1',
-					'~',
-				})
-			case glfw.KeyEnd:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'4',
-					'~',
-				})
-			case glfw.KeyPageUp:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'5',
-					'~',
-				})
-			case glfw.KeyPageDown:
-				gui.terminal.Write([]byte{
-					0x1b,
-					'[',
-					'6',
-					'~',
-				})
-			case glfw.KeyEscape:
-				if gui.terminal.IsApplicationCursorKeysModeEnabled() {
-					gui.terminal.Write([]byte{
-						0x1b,
-					})
-				} else {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'[',
-						0x1b,
-					})
-				}
-			case glfw.KeyTab:
-				if gui.terminal.IsApplicationCursorKeysModeEnabled() {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'O',
-						'I',
-					})
-				} else {
-					gui.terminal.Write([]byte{
-						0x09,
-					})
-				}
-			case glfw.KeyEnter:
-				if gui.terminal.IsApplicationCursorKeysModeEnabled() {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'O',
-						'M',
-					})
-				} else {
-					gui.terminal.Write([]byte{0x0d})
-				}
-			case glfw.KeyBackspace:
-				gui.terminal.Write([]byte{0x08})
-			case glfw.KeyUp:
-				if gui.terminal.IsApplicationCursorKeysModeEnabled() {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'O',
-						'A',
-					})
-				} else {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'[',
-						'A',
-					})
-				}
-			case glfw.KeyDown:
-				if gui.terminal.IsApplicationCursorKeysModeEnabled() {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'O',
-						'B',
-					})
-				} else {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'[',
-						'B',
-					})
-				}
-			case glfw.KeyLeft:
-				if gui.terminal.IsApplicationCursorKeysModeEnabled() {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'O',
-						'D',
-					})
-				} else {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'[',
-						'D',
-					})
-				}
-			case glfw.KeyRight:
-				if gui.terminal.IsApplicationCursorKeysModeEnabled() {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'O',
-						'C',
-					})
-				} else {
-					gui.terminal.Write([]byte{
-						0x1b,
-						'[',
-						'C',
-					})
-				}
+			} else {
+				gui.terminal.Write([]byte{0x0d})
+			}
+		case glfw.KeyBackspace:
+			gui.terminal.Write([]byte{0x08})
+		case glfw.KeyUp:
+			if modStr != "" {
+				gui.terminal.Write([]byte(fmt.Sprintf("\x1b[1;%sA", modStr)))
 			}
 
+			if gui.terminal.IsApplicationCursorKeysModeEnabled() {
+				gui.terminal.Write([]byte{
+					0x1b,
+					'O',
+					'A',
+				})
+			} else {
+				gui.terminal.Write([]byte{
+					0x1b,
+					'[',
+					'A',
+				})
+			}
+		case glfw.KeyDown:
+
+			if modStr != "" {
+				gui.terminal.Write([]byte(fmt.Sprintf("\x1b[1;%sB", modStr)))
+			}
+
+			if gui.terminal.IsApplicationCursorKeysModeEnabled() {
+				gui.terminal.Write([]byte{
+					0x1b,
+					'O',
+					'B',
+				})
+			} else {
+				gui.terminal.Write([]byte{
+					0x1b,
+					'[',
+					'B',
+				})
+			}
+		case glfw.KeyLeft:
+			if modStr != "" {
+				gui.terminal.Write([]byte(fmt.Sprintf("\x1b[1;%sD", modStr)))
+			}
+
+			if gui.terminal.IsApplicationCursorKeysModeEnabled() {
+				gui.terminal.Write([]byte{
+					0x1b,
+					'O',
+					'D',
+				})
+			} else {
+				gui.terminal.Write([]byte{
+					0x1b,
+					'[',
+					'D',
+				})
+			}
+		case glfw.KeyRight:
+			if modStr != "" {
+				gui.terminal.Write([]byte(fmt.Sprintf("\x1b[1;%sC", modStr)))
+			}
+
+			if gui.terminal.IsApplicationCursorKeysModeEnabled() {
+				gui.terminal.Write([]byte{
+					0x1b,
+					'O',
+					'C',
+				})
+			} else {
+				gui.terminal.Write([]byte{
+					0x1b,
+					'[',
+					'C',
+				})
+			}
 		}
 
 		//gui.logger.Debugf("Key pressed: 0x%X %q", key, string([]byte{byte(key)}))