// Go to File → Preferences → Keyboard Shortcuts or just press Ctrl + k + Ctrl + s.
// Then click the icon in upper right corner, it opens keybindings.json file:
{
"key": "ctrl+pagedown",
"command": "workbench.action.terminal.focusNext",
"when": "terminalFocus"
},
{
"key": "ctrl+pageup",
"command": "workbench.action.terminal.focusPrevious",
"when": "terminalFocus"
}