Release Selection of Elements so they don't delete when routine is run with new selection

[greg.peterson]

Hi, First post seeking help here… I have a Dynamo routine that will read a room parameter, then place all families from a specified folder with the same name as the value of the parameter. Problem is, when I select the next room manually using the selection node, the families previously placed will delete when the new set is placed. How can I prevent that?
Thanks,
Greg Peterson

[jacob.small]

Element Binding in Revit

Element binding is the name given to the process which Dynamo manage to ‘track’ the items created in non-Dynamo files. In this case, I’m going to focus entirely on element binding as it refers to Dynamo for Revit, but the mechanism exists to allow for this behavior in other applications (advanced steel, fusion, alias, etc.) as well. In the context of Revit, ‘elements’ refers to anything with an Element ID in the Revit database. When utilized correctly, element binding will expand how you leverag…

[ingenieroahmad]

You may use bakery package to pin old created elements due to first run.

[greg.peterson]

Thank you, I will try this!

[greg.peterson]

The pin object works, but the selection of those objects is still not released when running routine on next selection using Select Model Element node. I select the room, then families are placed by the room type parameter. Those families become the active selection so that when I select the next room to place content with, the content places but the previous families delete.