Hello,
it is easy. You can activate in add in function Input CAD extension. By this you can run query during a import dxf file.Set Query is also easy set. In a menu you can select which parameter you want add to a condition. So for example IF Radius = 10 then result layer = Hole_10.
Explanation IF , ElseIF, Else ..... you can find on a net.
For example
If variable = 0 then
do something
else
do something else
endif
Not to hard to understand.