Feature request : Password for hidden layers

This probably might not be too important, but it may increase the popularity and utility of LibreCAD. No other CAD application (or even any drawing software) has this feature.

Might it be possible to add a password feature to layers as such that to show a hidden layer, a user must input a password specific to that layer?

This will be of immense use for people who require a drawing platform for double blind simulations (such as disaster management training) and games (such as Harpoon, Star Fleet Battles and D&D). One or several layers will be accessible to a certain group of players/users, while another set of layers will be accessible to another group. So groups of people will only be able to see objects available to them (based on knowledge of layer passwords).

Thank you

Welcome adhikayev!

This feature is missing for a good reason. Because the format LibreCAD drawings are based on, DXF, which is basically the open format for drawing exchange, does not support it.
Also, DXF is usually a human readable ASCII file. With a little reading in the references it will be possible to bypass this protection easily. To prohibit this manipulation the feature will need encryption, which makes it much more complex.

So to achieve this feature it will probably need some incompatible hacks with DXF which might make drawings not readable with other CAD software. Making LibreCAD drawings exclusive is not our intention and basically not the idea behind free software.

When no other CAD software has this feature, I'd suspect that there is no need for it.
CAD software for games or disaster management also sounds like abuse to me. There are probably better platforms than LibreCAD for these tasks.

Armin