Q1 Do you utilize Do-more Designer's File->Export->Element Documentation C-more utility, then import them into your C-more project?
Yes, religiously. I don't make tags in C-more at all anymore, all of my tags are 100% imported from Do-more.
Q2 If so, do you do it incrementally as you program your PLC with Do-more Designer and import them incrementally using C-more software
OR do you wait until all the PLC development is done, then have Designer export all the tags all at once, then start working on your C-more HMI by doing a big C-more import?
Typically I start in C-more building the graphics and HMI putting in "placeholder" tags (internal C-more) as I go. Then I build out the program in Do-more and export the tags to C-more and replace all of my placeholders. After that it's a very incremental process with edits in Do-more and then re-exporting and importing the tags into C-more. I've done the export/import tags as much as 5-10 times in a 15 minute window doing tweaks and incidental updates to a program.
Q3 Is Designer's C-more Export mechanism useful?
Extraordinarily. I couldn't start to guess how many thousands of hours it has saved me since Do-more came out in both just the process of creating tags in C-more, but also in avoiding typos when replicating tags manually in C-more.
Q4 What would make the integration between Designer and C-more better?
If I could link projects together so that new tags created in Do-more just appeared in C-more without having to do the export/import dance. That's probably a far fetched idea, especially because of how I do my file versioning (the link would likely break every time I do a save-as), but it would be great if it could happen.
As others have said, the ability to use something longer for the nicknames. Maybe linking to extra info as an option for the tag export, but I don't see description being great for me as I tend to write pretty lengthy descriptions for my tags.
To me, it's not a big deal that there's 2000 tags imported into C-more and I only need access to 300 of them, the unused tags in C-more don't hinder performance in any meaningful way that I've noticed so having the extra tags in there doesn't bug me.