Sorry later i found another discussion on that topic here,
https://discourse.pyrevitlabs.io/t/pyrevit-and-multiple-open-models-problem/1752
but Jean-Marc already answer while I tipyng. 
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Sorry later i found another discussion on that topic here,
https://discourse.pyrevitlabs.io/t/pyrevit-and-multiple-open-models-problem/1752
but Jean-Marc already answer while I tipyng.