Two methods
1. Key Board Comand.
Double click on your displayed integer.
Select "Input" tab.
Select "Keyboard command"
Under "Key Sequence" enter
"### ENTER"
In Command box enter
"MyInterger = Arg1"
Then run,
When mouse over your integer enter your value eg. "123" then press Enter.
2. Touch
Double click on your displayed integer.
Select "Input" tab.
Select "Touch" tab.
Enter into box:
"MyInteger = FormNumPad("Key Pad", MyInteger,0)
Then compile and run.
By left mouse click on your integer will bring up a key pad form.