Unable to map a button to an absolute value

Hello,

I just bought CSS and I'm trying to map a button on my controller to toggle a 0-127 parameter in the rack.

The first problem is that it only changes the value from 0 to 100, which I think is a bug. It maps the "Minimum" and "Maximum" values which are defined as a %, but it changes the parameter to 0 and 100 in the rack, and not 0 and 127.

The second issue is the inability to make it a toggle, i.e. one press would set to 0 and the second press would set to 127. In my understanding, I should send a momentary note (on-off) or cc (0-127) from the controller and the script would ignore the release when set in toggle mode.
Unfortunately I cannot make it works that way. What am I missing?

Thanks in advance,
ph