How to Make Sure Elements Collide for Best Cleanup Results

Use this function (Edit > Reshape > Adjust Elements to Slabs) to easily adjust elements (Walls, Columns, or horizontal Beams) to specific levels of one or more Slabs that are located above and/or below them.
Note: If a Door/Window is linked to the bottom of a Wall, the Adjust Elements to Slabs command will automatically recalculate the offset to retain the opening position.