Cannot use Flatten command in LT

[EmreYucel34]

Hello, the flatten command in Autocad is unfortunately not available in LT, can you help me how you can solve this situation in LT, thanks

[h_s_walker]

Which version of LT do you have?

[pendean]

Select all of your objects in the file (ensure all layers are unlocked/thawed/on), open PROPERTIES command, at the very top use the pulldown to sort by object type, then scroll down the long list to ever "Z' entry and manually replace whatever is written there to 0 (that's a zero, do it even if you see a zero).

Read all about it (and more) here from Autodesk

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/how-to-flatten-a-d...

If it takes you more than a minute for a DWG file I'd be very surprised.

FLATTEN command in full AutoCAD also destroyed 3D Solids and 3D blocks to make then 2D: there is literally nothing in LT, even with LISP in 2024/2025, those core commands are just missing.