windows passing block staircase

[mario cant]

a “particular” insert of the windows is their positioning in the staircase block.
the peculiarity is given by the fact that the windows must be inserted in the masonry of two contiguous levels, overlapping. as in the figure attached.
is there any way to overcome the problem? thank you.

 

[manuel]

Hi.
you must "unite" with the appropriate command the 2 walls (the one above with the one below... the division lines that you find now will be eliminated. can be that once you join the 2 walls you will have to delete and re-enter in the correct position, your window... Try!

 

[Tristan]

Have you tried to join the walls? (change > join)

 

[mario cant]

I solved it with me.... thank you.
in the middle of the lines that are seen in the views 3d .... is a probblema that I had place to ask then ....but manuel anticipated it....with mejoin also disappear the lines.

but there is no command about them that allows to do so in one at the same time for all the walls at all levels?
otherwise select each single wall is arduous!

 

[Tristan]

but there is no command about them that allows to do so in one at the same time for all the walls at all levels? !

No, unfortunately... .