### Toolbar Buttons and Shortcut Keys

The Source window provides the following toolbar buttons and shortcut keys:

- [O] -- Step over
- [I] -- Step into
- [D] -- Step debug
- [T] -- Step return
- [R] -- Run
- [SysRq] -- Halt
- -- Change views
- -- Monitor expression
- -- Call stack monitor
- -- Registers monitor
- -- Storage monitor
- [Ctrl+X] -- Breakpoints list
- EDIT_BMP -- Edit source
- [Ctrl+B] -- Session Control window