Is it possible to open the Duration for each Service?

Hi there,

is it somehow possible to open up the duration time for each service?

My problem is, that i have 2 Services. 1 Consultation Service which is about 90 Minutes and the other Service is 60 Minutes.

If i set the time base to 60 Minutes, every service can only be 60,120,180 minutes long.

If i set the time base to 30 minutes, i can set 90 minutes for my service, but then someone can book a 30mins earlier appointment, which results in overlapping with another appointment who started 30mins after.

Is there a way, to manually set the duration time for each service?