Read the app. It has 3 buttons. One to record, one to play once, and one to loop. Each button is a ON/OFF button. If you press the one to loop. press it again and it get turned off. Same with the recording, there is no notification that it finished recording or stopped. Its very simple software. You can then save the macro for later and load it. You can even load the macro in the space below to queue them and add how many loops.
For the buttons you can edit them to work with the keyboard. I seelected buttons 1, 2 and 3 on the keyboard.