Market Profile merge function

I need TPO (market profile) indicator, which could

1. Merge few days into one composite profile. Basically I do it when few balance days are overlapping.

2. Also it should be able to split/cut chosen profiles into two separate profiles on my chosen time/place/period. I only do this then there are two balance areas separated by single print in one profile, example will show all clear. These new different profiles (split parts) should have ability to merge with other profiles to make new composite profiles.

3. This indicator should have functions to un-merge and un-split if I change my mind.

4. TPOs should have VALUE AREA marked, with 70% setting, which should be changeable in settings.

5. Another thing is to have two small horizontal arrows, marking open and close time of profile.