Hey @HadiAram,
on point one, yes it is possible to edit values in models outside of software programmatically and we’ve seen several showcased examples around Revit alone, we recently shared the fabulous work by @samberger :
https://speckle.systems/blog/featured-developer-steffen-samberger/
One of the great entries from the Arup team from the first hackathon was similarly demonstrating this:
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On your second point, not right now. However viewer extensions and customisation is always under review and a hidden line or edges only view is frequently requested, there is a post you can add your vote and voice to here:
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An example of a feature request that graduated from a forum post here is in-viewer measurement