> For the complete documentation index, see [llms.txt](https://docs.flightsim-studio.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.flightsim-studio.com/boeing-727/introduction/faq.md).
# FAQ
Here you will find the most frequently asked questions. If you can't find an answer here, use the search function at the top right. If this still doesn't help, then get in touch using our [contact form](https://flightsim-studio.com/contact).
Are there any incompatibilities?
**Other 3rd party addons**
Unfortunately, some 3rd party addons are not programmed optimally, so that they overwrite certain standard functions or displays in the MSFS and change their behavior, which in turn affects our aircraft. The following errors can occur:
* The DRM popup window does not appear.
* The addon is not loading properly.
* The whole addon or WASM crashes.
* The addon is behaving obviously wrong.
To prevent this, we strongly recommend using an addon linker (e.g. the free [MSFS Addons Linker](https://de.flightsim.to/file/1572/msfs-addons-linker) Tool) to activate only one aircraft addon per session and prevent mutual misbehavior.
The following 3rd party addons have already been identified as problematic by our community, although no guarantee can be given for correctness and completeness.
* RLTS Ultimate Traffic
* [Bishop Rock Lighthouse (Helipad)](https://de.flightsim.to/file/15955/bishop-rock-lighthouse-helipad)
* [BGAA - Aasiaat Greenland](https://de.flightsim.to/file/4467/bgaa-aasiaat-greenland)
* [BGBW Narsarsuaq Greenland](https://de.flightsim.to/file/734/bgbw-narsarsuaq-greenland)
* [BGCO - Nerlerit Greenland](https://de.flightsim.to/file/3614/bgco-nerlerit)
* [BGJN - Ilulissat](https://flightsim.to/file/4833/bgjn-ilulissat)
* [BGKK - Kulusuk Greenland](https://de.flightsim.to/file/3662/bgkk-kulusuk)
* [BGMQ - MANIITSOQ AIRPORT, GREENLAND](https://secure.simmarket.com/pearl-simulations-2-bgmq-maniitsoq-airport-greenland-msfs-\(de_15562\).phtml)
* [BGMQ - Maniitsoq Greenland](https://de.flightsim.to/file/4384/bgmq-maniitsoq-greenland)
* [BGSS - Sisimiut Greenland](https://de.flightsim.to/file/4433/bgss-sisimiut-greenland)
* [BGUQ Qaarsut Greenland](https://de.flightsim.to/file/3856/bguq-qaarsut-airport)
* [BIKF Keflavik Airport](https://orbxdirect.com/product/mkstudios-bikf-msfs)
* [Iqaluit Airport (CYFB) Enhancement for Asobo's CYFB](https://de.flightsim.to/file/57466/iqaluit-airport-cyfb-enhancement-for-asobo-s-cyfb)
* [TL Creation Greenland Enhancement Pack](https://de.flightsim.to/file/45487/tl-creation-greenland-enhancement-pack)
* Cera Sim Mil-17
* [CowanSim Bell 222](https://cowansim.com/product/222b-for-msfs/)
* [CowanSim MD 500](https://secure.simmarket.com/cowan-simulation-cowansim-500e-msfs-\(de_17540\).phtml)
* [Carenado PC-12](https://www.carenado.com/sitecarenado/product/pc12-msfs/)
* [Cockspur C510 Mustang](https://cockspur.eu/product/cockspur-c510-mustang)
* [Shift+Z Stats](https://de.flightsim.to/file/16358/shift-z-stats)
* [MSFS Map Enhancement](https://de.flightsim.to/file/19345/msfs-2020-google-map-replacement)
If you want to read up the technical problem behind this story, please check out [this article](https://devsupport.flightsimulator.com/t/vfs-we-need-to-find-a-way-to-stop-this-madness/7273).
How to add weight to the aircraft?
We highly recommend to use the clipboard to add weight to the aircraft instead of using the default MSFS weight menu. Only then the C.G. will be applied correctly.
Where can I find the paintkit?
Please head over to the [Custom Liveries](/boeing-727/supplements/custom-liveries.md) section.