Thanks Hatem
I have another question,

when i assign different attributes to an objekts like Window and want to see them in my report, these attributes are only for that object, and I have to create again all the Windows from this one which has the attributes. how I can assign all the attributes from one object to other object? when I use dropper, it only takes the General information of the other object, not the Attributes.

Hello Hatem. I have a question. in allplan in one Room I have 4 same windows but with different attributes,like special positionnumber for each one, in my report list I want to see these windows individually and with its own attribute, but it shows all the windows as one type and only shows the position number of one of them, while they are different.sometimes randomly it shows some of them separately and some of them together, while they are all same with different attributes. how I can fix this problem?

I have attached the files here, for example in this room I have 4 windows, named separately in allgemein possitionnummer attribute (EG.R03.Fa,EG.R03.Fb,EG.R03.Fc,EG.R03.Fd) when I select one of them in the report it shows correct positionnummer and everything is ok, but when I select all, while the possitionnummer is different it recognize all as same windows and randomly shows the positionnummer of one of the windows. I have attached my report, screenshots , and attributes file of one of my windows.

I tried to send the rdlc file but it cant be sent here.

When I try this, I get an error, so I might be doing it wrong. I created a door list the same way, and it worked. I think the issue is that the doors in one room have different smart parts, like one has a right handle and the other has a left handle. But the windows are the same, except for their position numbers in their attributes, so it doesn't see them as different objects and separates them randomly. I've attached the files in a zip folder. It would be great if you could check them.