Moving curtain wall mullions

[bn683326]

This is probably a simple question-

While trying to move curtain wall grid lines 1/4", I am having trouble using the arrow keys because it skips. Is there a way to place a working dimension so I can evenly and accurately space the window panels? (see example photo)

[cdatechguy]

Select the gridline....select move....when you drag it the direction you want and type in 1/4"

But you should be able to click the "show dimension" button if the temporary dimensions don't show up.

[Dimitri Harvalias]

Welcome to the forums.
The arrow keys are a 'nudge' tool and won't place elements precisely.
If your dimension witness lines are associated with curtain grids you should be able to select the grid and then edit the dimension by entering a value.
Depending on the configuration you are after you may be able to get Revit to automatically space mullions by setting up the curtain wall to be a fixed number of panels and then adjusting for mullion width.