Optimize Asset Importer Model Scaling

Usecase:
I would like to use DA to plan 3d printed dungeons by importing my STLs
issue:

• The scale is reset / different for each import (the default stl size is 1mm = 1 unit while the most common gridsize size is 1" = 1 Square => divide import scaling by 25.4)
• it is impossible to set the length of a tile to a specific amount (making scaling models even more difficult)

Possible Solutions:

• Add an option to use a configurable default scaling
• Add the ability to scale models to a size by entering a given dimension
• Add the ability to disable the auto-scaler and make the realtion from unit to gridsize public, so that each user can calculate their conversions before import