Allow for Duplicate Client Entries for the same Timeslot

I do a lot of parallel work while on meetings, and this work is also billable to the client,

Right now if I try to put two time entries for say 11-12 for Client X, it just merges the two.

It would be nice if this was a setting, I understand why it exists, but I need to track this parallel work. Right now I have to arbitrarily throw it in early morning or late evening