by John Flanagan
Disjoin: Click Disjoin to break the association between the selection and other elements before moving. This option is useful, for example, when you want to move a wall that is joined to another wall. You can also use the Disjoin option to move a hosted element from its current host to a new host. For example, you can move a window from one wall to another wall. This feature works best when you clear the Constrain option.
By default, Revit creates a join where 2 walls intersect. However, you can prevent joins for a selected wall whenever necessary.
Select an external wall and then click on the Move tool. With the move tool selected look at the options on the Options Bar. Uncheck the Disjoin option if necessary. The result is shown below. When the exterior wall is moved to the right a specified distance all of the attached walls stay connected to it.
To move the wall independently as a free standing wall just click the disjoin tool.
Move isn’t the only tool with disjoin functionality, try it with the Rotate tool. Select a wall, click the rotate tool and rotate the wall by 45 degrees with disjoin off/on. Note the differences.
Tip: If you want to keep small expansion spaces between walls, you can do so by disallowing joins for either of the adjacent wall ends.
Note: Use caution when moving objects with the Disjoin option. The moved element is assigned a new element ID during the move action. This will cause instance parameters to be reset (i.e. Mark value) and dimensions related to the element to be removed.