Post #3298: 
MickHanks:
Many times there are button is a boolean true/false. I don’t what to have 2 buttons, one Off and one ON. Can a button be turned into a toggle in the custom line?
It depends on buttons. In most cases it’s possible by adding Boolean Property but you need to look at button’s source code to find a way to display its ON/OFF state.
MickHanks:
Also why is the “custom ” only one line?
Blender don’t have multiline text input widget. But you can call external multiline python script:
execute_script("scripts/my_script.py")
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