some Grid lines not visible

AR reported the all the grids were not showing up in the floor plan. Visibility of grids are controlled by grid extents and if a grid line is shown from 3rd floor to 4th floor, this line wont be visible in the 2nd floor. You can select the grid line and select “Maximize 3D extents” to make it visible in all the floors. “Reset to 3D extents” extents the grid line to align with the 3D extent point for that line.

Propagating Dependent views

Revit has a very good utility that propagates dependent views (from one floor plan to another)
1. Create dependent views for a particular floor plan (say “Level 1”); crop them, etc.
2. Right click on the view (“Level 1”) and select “Apply Depended view..” .
3. Revit lists all the other views to which the dependent view of Level 1 can be applied.
4. Dependents view can be applied only if the view is of the same scale.

Splitting spanning walls horizontally

We had a shaft wall that spanned many floors. During the DD the shaft wall was moved on each floor, in such a manner they didnt align. Changing the spanning wall to go up to only one level resulted in lot of "Rooms not defined" errors in Revit.
Fortunately the "Split" command works in the elevation too. If you split at the Floor level, the split wall gets constrained to the level too. (Splitting also keeps the wall tags intact!)