Seeding of object

Hello. how can I place two objects on the same X/Y/Z axis in the editor to combine them without any protruding edges? Booth Objects has the same depth.

Hallo. Wie kann ich zwei Objekte auf der selbe X/Y/Z Achso platzieren, um sie zusammen zu fügen, ohne dabei überstehende Ränder zu haben? Beide Objekte haben die selbe Tiefe

Hello, to help us better understand your request, please attach a screen recording showing what you will like to achieve. After which we will be glad to proffer suggestions that can be helpful.