Set Selection FIlter based on selected object
What it does:
When nothing is selected and you run the script it set the Selection Filter dropdown list to All.
If Spline object is selected it set the Selection Filter to Shape
If light object is selected it set the Selection Filter to Light
and so on.
Installation: drag and drop the mcr file in max viewports. Go to Customize - Customize User Interface - "miauu" category and search for "Selection Filter Switcher" script.