Locking and unlocking classes in Pointly

The ability to lock and unlock single classes in Pointly, avoid the risk of overwriting existing classification with a new classification. This feature increases the classification efficiency significantly.

Examples where it's nice to have this feature:
✅ Locking classes in pre-classified point clouds allows for a jumpstart to start classifying the reminder of needed classes. (E.g. the ground is often pre-classified, now it can stay locked the whole time.)
✅ Locking classes in classified point clouds allows for a quick finish of the remainder of needed class/es. (E.g. everything but one/more classes is classified, now they can stay locked for the remainder of the classification stage.)