when setting a F4 mission interface with a "backgroundSpecial" property set to "CUSTOM_CHART_QUICKEST" or "CUSTOM_CHART_SHORTEST", if the ANA is not in "shortest" or "quickest" mode on the F6 screen, then the custom links are not displayed.
I think this one is by design. Custom links aren't shown on any backgroundSpecial screen when the ANA is not in shortest or quickest mode. In fact, no links of any sort are shown if the mode is not one of those two.
Your best bet is to make sure one of those two modes is selected whenever you display a screen that needs to show links, and then revert back to the previous setting when your screen is finished.
I think this one is by design. Custom links aren't shown on any backgroundSpecial screen when the ANA is not in shortest or quickest mode. In fact, no links of any sort are shown if the mode is not one of those two.
Well yes, that's what I thought.
It breaks a little the immersion, when being in a F4 interface, to have to go to the F6 interface to set the ANA mode, before going back to the F4 interface.
It would be useful to be able to modify the ANA mode through javascript, or maybe simpler to set the ANA in the adequate mode depending on the requested backgroundSpecial option.
OK, I just did some tests by hacking on the Galactic Registry OXP. In a brand new ship (ie with no ANA at all) and with the ANA equipment installed but set to no route mode, I got space regions to show on a custom chart. Could I trouble you for a sample OXP to demonstrate the problem you're having?