Hi @ScanIT,
In Emlid Flow, you can import CSV (PENZD) where the columns shouldn’t have a header. Did you have a chance to try it?
As you mentioned, it’s also possible to add points by typing in their coordinates. manually.
Regarding the base position, it’s possible to configure it with an already-created point by choosing a point from any project. You can find the necessary steps for it in this Support tip.
Feel free to share your experience with any of these tools!