How to make a never stop loop in Synapse 3?

I tried lots of ways to make a never stop loop but all failed.

The request is simple, press a key every 1 sec and continues for more than 1 week.

1. Add the macro group itself to the end of the macro.

2. Set playback option to "Toggle continuous playback on/off using assigned key"

Both methods stopped after several minutes without any notification.

3. Insert loop section, but it limited to 99999 times.


Is there any way to set up a never stop loop lasts for more the 1 week?