You have it partially correct, but for the EDR3 data you need to add gedr3-1.0.0-01.xpsd as well. The databases go progressively in order of magnitude so you need everything from "-01" up to whatever number you've settled on as the appropriate magnitude limit for your imaging setup.Hello Juan,
Thank you for all the work on the recently released PixInsight version 1.8.8-7 which I downloaded. Per your recommendation I also download the Gaia EDR3 and APASS DR10 databases, which I understand are needed for plate solving which is essential for mosaics, something I have recently started. I am unsure if the downloaded files are accessible to the program the way I have listed them. When I right clicked on the downloaded files they would not open so I entered their file path. Please see attached photos. I appreciate your guidance to ensure the plate solving function works as you intended.