CAKE made a tutorial pretty much detailing the same steps Arfy made, except with images. the tutorial can be found here:
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I mean to post this earlier, but while making a reply, I found a related bug in Superluminal which then got fixed in v2.2.1 so be sure you got that latest release.
I don't know if you can create multiple ships at the same time and save them all as one file, but Superluminal can combine individual ship mods for you. I'll detail the steps below (found a bug in v2.2, recent v2.2.1 fixed it).
- Open up Superluminal.
- Load an existing mod file via File -> Mod Management -> Load Mod, then EITHER
- Load in another mod file then hit Confirm. Next, go File -> Load Ship and pick the ship from this mod file you just loaded. OR
- Just hit Confirm. Next, make a ship (and don't let it replace the same ship as the first mod you loaded!).
- Save the ship as an .ftl file, and use the "Include mod files from:" dropdown to include the first mod you loaded.
- Browse a save location and Confirm. There, now you should have a mod file with multiple ships.
- To add more ships, repeat steps 2-6 except use this new mod file for step 2.
When you load in one mod file with multiple ships via Mod Management, when using Load Ship you can pick different ships. When saving after editing one such ship, be sure to "Include mod files from:" the currently loaded pack of ships.
I was going to talk about console glow problems in more depth but it can get a bit confusing so just know that if you have problems first look into rooms.xml.append. If you have more groups of (engines, shields, pilot, weapons) tags than ships then you've probably got old entries from previous changes causing problems so you'll need to delete those old groups.