Issue 1: There is no way to have the same dimension in reporting tree and in the row definition.
This will cause wrong values.

Issue 2: Currently, we need to specify the dimension filter one by one:
Click "Add a dimension filter" and choose Department = 025
Click "Add a dimension filter" and choose Department = 022

There is no multiselect option to have just line like in standard Dynamics filters, example
Click "Add a dimension filter" and choose Department = 025, 022

Issue 3. There is no option even to save this, so user need to enter this everytime which is time consuming if he need to enter/filter by 30 dimensions.