# Set parameter of batch of families in directory

**URL:** <https://forum.dynamobim.com/t/set-parameter-of-batch-of-families-in-directory/76720>\
**Category:** Revit\
**Tags:** revit, clockwork, dynamo\
**Created:** [May 19, 2022, 7:09pm UTC](https://forum.dynamobim.com/t/set-parameter-of-batch-of-families-in-directory/76720 "2022-05-19T19:09:14Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![SeanP](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.dynamobim.com/seanp/32/42560_2.png) [@SeanP](https://forum.dynamobim.com/u/SeanP)\
**Post date:** [May 20, 2022, 1:12am UTC](https://forum.dynamobim.com/t/set-parameter-of-batch-of-families-in-directory/76720/2 "2022-05-20T01:12:10Z")

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Check this and should get you going in the right direction.

> [@Is it possible to change the Room Calculation Point for all families in a project?](https://forum.dynamobim.com/t/is-it-possible-to-change-the-room-calculation-point-for-all-families-in-a-project/40193/7):
>
> Had a play on my flight back to Toronto - This one will remove the need for List.UniqueItems slight_smile import clr clr.AddReference("RevitServices") from RevitServices.Persistence import DocumentManager from RevitServices.Transactions import TransactionManager clr.AddReference("RevitAPI") import Autodesk from Autodesk.Revit.DB import \* doc = DocumentManager.Instance.CurrentDBDocument # Collecting all placed Family Instances collector = FilteredElementCollector(doc).OfClass(FamilyInstance)…

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