it said it comes with Sode jetways but they did not appear after I installed the airport so I just added my own
The GSX editor has a test mode ( NumPad 5, by default, when a jetways is selòected ) so, when you place a jetway, you can check if it will work with the currently loaded airplane, because it will give either a sound ( ok ) or an error message.
Jetways work ( or not ), with a combination of:
- The jetway model
- The jetway position and initial rotation
- The Stop position in GSX
- The airplane used and it's doors, assuming they are all configured correctly.
Please have a look at the GSX Manual, Page 43, the "Understanding the Stop Position" chapter.