How to display remote branches grouped based on custom character?

[Deleted user]

Hi,

We are trying to group our branches based on first occurrence of "_". This is because of some legacy reasons that we could not adopt "/" default group naming convention. 

eg. Our current branch naming convention is:
- feature_abcd_123
- bugfix_efgh_2345

etc. 

So how to make BitBucket GUI group our remote branches based on first occurrence of "_" instead of "/"