responsive slicer size

Hi,

I have a date hierarchy in slicer (using HierarchySlicer custom visualization, because why would it be a basic possibility in PB...).

When closed, it looks like this:

When opened, it looks like this, with the other quarters and months cut off, and a possibility to scroll:

I can enlarge the slicer object and lower the "Shipment Type" slicer, but when the time slicer will be closed it will just be a large box, mostly empy, like so:

Is there a way to make PB increase the slicer size when needed, and lower the object below it automatically, like so:

I realize this slicer is a custom visualization, and that PB does not support date hierarchy filter at this time to maybe allow a built-in function to expand the object size according to selection, but maybe someone knows how to bypass it...
Thank you!