I have developed a new extension called Skp4d Pro that allows you to import a professional schedule from Microsoft Project, Gantt Project or Project Libre and attach imported tasks to your model in order to use Sketchup as a BIM 4D software.
Here is the extension and some models with xml shedules to test.
https://remodelapr.es/2023/02/19/bim-4d-sketchup/
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