With this tips, you can make a control likely pressing (a) key(s). First declare the Win32 API modul on Declare -> Local External Functions

Subroutine keybd_event( int bVk, int bScan, int dwFlags, int dwExtraInfo) Library "user32.dll"

Next is an example to simulate pressing "A" key
integer li_vkey
li_vkey = 65 // Character A
sle_1.setfocus() // the desired control to view
keybd_event( li_vkey, 1, 0, 0)

Another example to simulate "Backspace" key
integer li_vkey
integer li_pos
li_pos = len(sle_1.Text) + 1
sle_1.selectText(li_pos, 0)// Cursor position on last text
li_vkey = asc ("~b") // backspace
keybd_event( li_vkey, 1, 0, 0)