We use the Tag Manager for a larger web project with dozens of market pages. It works great overall, but I sometimes find two details a bit tiring:
I often have to use more or less the same tag, trigger or variable repeatedly with only a few changes (e.g. ID). Couldn’t you set up a copy function to minimize the necessary adjustments?
Due to the large number of tags, triggers and variables, the overview pages are often confusing. It would be useful if you could create tag groups, trigger groups, and variable groups.
I’m afraid we can’t help you here.
The best thing is to send your requirements to Matomo Support or create an issue as a feature request in the Matomo Tag Manager Github.
Totally agree working with lots of tags and triggers can get messy really fast. A copy feature and grouping system would save a lot of time and make things much more organized. This would be a great improvement for larger projects.