Hi marpet,
I am trying to load some WMS service but I cannot do it because the finish button is not on.
Can you provide any URL to check if i can load WMS services?
Other question is that only one of the three WMS URL provided by SNAP works well, I obtain a error with the other two.
Before clicking on Finish you need to click on the Next button to get to the next step. At this step you select the content for the layer. And then you can also click on Finish.
This option is only shown if your current scene is compatible.
It needs to be reprojected to a CRS.
For Sentinel-2 MSI data this works by right away. While e.g. Sentinel-3 OLCI needs to be reprojected first.