You could also set up a Graphic override where the criteria is looking for 'dimensions' and the override style is setting the fill background to transparent (zero or null pen).
Use this GO in the schedule view settings.
If you don't want the coloured fills for the windows either, then set the criteria in the rule to "All Types".
It will hide the fill for the windows as well as the dimensions.
In effect you will just have line drawings of the windows.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11