How to control the unit representation in tag?

Sometimes, users would like to customize the tag representation such as units, rounding, and unit symbols as per the locale structural engineering custom, e.g. for the below tag,

There are 3 parameters need to be labeled – Depth, SpaceNum, Panel Point Load. And the type for them is defined respectively as:

Depth: Length

SpaceNum: Integer

Panel Point Load: Force

Users would like to report Depth in inches, and no unit symbol show up; use N for the SpaceNum units; use K for the panel point load units, and the precision for it should be one decimal, just like,

However, as we all know, unit settings in Revit will follow the ones that set in project environment rather than in family editor. This is defined by default in the unit setting and it is unchangeable, see below,

In this case, even if we set the units well in the tag family, when users use it in project, they have to change the units setting in project to match to the tag representation.

However, for the tag family, there is an option "Use project settings" for the parameter's unit format which can be used to decide whether project unit setting or family unit setting to be used. This could be defined as below,

 

Thank you

Wai