Hi,
I have found that adding several User Parameters at once is quite cumbersome.
For each parameter I have to move my hand between my keyboard and mouse to click a "+" symbol, this really should not be necessary.
This tedium becomes really apparent when I am redoing my Inventor models in Fusion 360, for which I have to manually type in all the parameters again.
A simple solution for this would be to open a new "Add User Parameter" dialog again if you for example hit the spacebar, or tab key, after closing the previous one by hitting the Enter key.
Ultimately the parameter table is a table and should behave like a table, I wound much prefer that there was no dialog box at all. This would also make it quite intuitive to use the Tab key to move to the next cell, and if at the end of a row, create a new row, for a new parameter.
Regards,
Martin