Today we’ll release a major update on Sentinel TOPS module. This update will include two main functions:
1. Support of Sentinel-1B data;
2. Support of automatically merging adjacent images (on azimuth direction).
Now, if you have two (it can be more, as long as all of them are adjacent) TOPS SLC images, on the same date, same orbit, adjacent on azimuth direction, you can simply put the two SLCs in the SLC folder. The software will automatically detect, merge and process them so that you can have a bigger footprint.
An example of Sentinel-1B result can be found here for your reference.