Question

In pro tools there when I selected an event it created a loop for the event (as by s1) but by the end of event the recording (and playback) stopped

(and in studio one when i select " Loop follows selection " the loop follows the selection, but the playback DOES NOT STOP AT END OF LOOP)

Answer 1

They already have this, please read the manual before requesting things that are already in the program ;)

Top menu -> Transport -> Options -> Loop follows selection. CMD ALT P on mac.