I'm enthustiast to discover BRU for the first time!

I'm using it to rename - using the same prefix pattern - pictures and video taken by different cameras (and diffe time settings).
I've found out that my compact-camera was set with 1h and 4 minutes delta with respect to my "zero" camera-phone.
I understood how to use offset setting to modify the hours, but no clue how to set offset on minutes

example:
-original time: 12h40m30s
-desired outcome: 11h36m30s
In attachment the example
Do you know some method useful to my purposes

Thank you very much in advance.
Regards
Alberto