About the hole in the ceiling:
By the way, (your post does not contain the picture that you mention in the post).
Select the ceiling > Edit boundary > Draw the hole inside > Finish.
To make a hole in the ceiling, we edit the sketch of the ceiling. Otherwise, another option is Architecture > Opening > By face.
About the shaft, check the properties of the shaft. Check the settings for base constraint, base offset, top constraint, and top offset. By doing that, you are giving information to Revit about where you want to shaft to begin and where to end.
A hole in a ceiling can be done by any of the 2 methods that I have mentioned. Editing the sketch of the ceiling, or using Opening by face.
Well, the methods that I have mentioned do work. The fact that they are not working for you does not mean that the methods "don't work". You are doing something incorrectly but I can't determine what it is. Please refer to the help documents for the details about how to use these tools.
Please copy the ceiling to a new revit file, and post it here so we can take a look.
@nasanin.rashidian wrote:
I did! Otherwise I would not write here! Thanks for the "support".
In case you have not noticed, I have already posted 5 messages in this thread, trying to help you, with some posts on Sunday and some on Christmas day. Oh, well...Merry Christmas ! 🙂
I'm not really sure you have a full understanding of how sketch mode works. If you want to create a "hole" in something (floor, ceiling, filled region, wall), then you have to do exactly what Alfredo said, and draw another boundary within the outer boundary, and the ceiling just won't be created in that area. This has nothing to do with the fact that you have the German version.
Try this: start a new filled region. While in sketch modraw draw two concentric circles, then finish sketch mode. You should now have a hole in your filled region. Now go back to your ceiling, select it, and choose "edit boundary". While in sketch mode, draw additional lines around the area where you want the hole, and choose finish sketch.