Dynamic blocks are not compatible with how Land F/X saves or inserts blocks. Further, they do not work with our Nuke drawing cleanup, so as such they do not align with our recommended Best CAD Practices.
Still, you should be able to make an AutoCAD Palette that has your Door and Window dynamic blocks.

--J

Lauren,
You might be pleased to hear that Land F/X now supports dynamic blocks! Take a look at our most recent power tip on this feature. It is at its basic stage but should be fully functional. If you do experience any issues when saving your dynamic blocks into the system, please send them over and we can see why they might not be working.

https://www.landfx.com/videos/powertips/item/2637-dynamic-block-support.html

Freaking awesome.

Tell us how you really feel And just so you can be looking for them, very very soon (hopefully today), we will have some new blocks that are dynamic and colored for your use!