Screenshot icon added in touchbar permanently

I am new to mac ans Better touch tools just bought it.
In windows we have snipping tool very handy just to take the screenshot of desired area and paste it directly.
In mac i came to know i can be done via command. command+control+shift+4 i added the same in touch bar icon via BTT its working fine perfectly but sometimes it hides itself not sure why any way i can make this permanent?