Hi @berry.lejeune. One fairly simple thing you could do is have a line of code in a rule that executes the command to show the assembly BOM dialog, like this:
ThisApplication.CommandManager.ControlDefinitions.Item("AssemblyBillOfMaterialsCmd").Execute
If this solved your problem, or answered your question, please click ACCEPT SOLUTION .
Or, if this helped you, please click (LIKE or KUDOS) 👍.
Wesley Crihfield
(Not an Autodesk Employee)