In the default new project window, I could see only cs previously loaded.
To "load" other cs, I typed directly cs-code; doing this I could load and see all cs like map3d.
I could load my custom cs too, as chris suggested.
now i'm ready.
I have a few questions that might need to be in a separate thread but it deals with coordinate systems.
1. You can use that PRJ file when importing your data into Galileo (assuming that data is in something like SHP format). It is not really necessary to use your custom coordinate system for the Galileo database itself (leaving it at LL84 is fine), as Galileo will automatically offset things to be close to 0 when creating its 3d view of things, and will also use its own projection for that.
2. As long as you know the origin and offset, you can apply it manually when importing the 3ds model into Galileo. It will likely not happen automatically as the origin and offset would be stripped from the 3ds model itself.
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