Translations:Manual:BIM modeling/15/en

Now we need to join these walls together, so they intersect properly. This is not necessary when your walls are drawn in a way that they already connect cleanly, but here we need to, since they are intersecting. In Arch, this is done by electing one of the walls to be the "host", and adding the others to it, as "additions". All arch objects can have any number of additions (objects whose geometry will be added to the host's geometry), and subtractions (objects whose geometry will be subtracted). The additions and subtractions of an object can be managed anytime by double-clicking the object in the tree.
 * Select the four walls with Ctrl pressed, the last one being the wall that you chose to become the host
 * Press the [[Image:Arch_Add.png|16px]] Add button. The four walls have now been turned into one: