assign new level to columns

[Anonymous]

I would like to edit the level my structural columns are assigned to, but the base level and top level are greyed out. 

Could someone please explain how this can be done in Revit Lite 2019. Thank you!

[Karol_Piroska]

do you mean the level offset? Select columns, Detach top/base, detach all

[Anonymous]

I would like to change the base level of a column. it is greyed out in the properties bar. I can edit the ofset level, but I would rather attache the column to the correct level and make the offset 0. 

[Lakshman01]

@Anonymous  How do you got the Top is attached(check box) instance parameter ? Is it is default in Revit LT or do you created any parameter for this? Because in Revit (full version) i didn't see those and all.