Layer organisation

I want to start using layers.  Should the main drawing elements be assigned to one layer
and their dimensions be placed on separate layers?

When I select a dimension and go to Modify-Properties, I cannot change Layer from 0 to 1.
Only Layer 0 is available.

To move an entity to an other layer via properties that other layer has to exist already. You create a new layer in the Layer List at the + button.

Dimensions should be on an extra layer, for other elements you should consider this too, like hatches, text, title box, frame etc.

It is often recommended to leave Layer 0 empty, this has to do with insertion of blocks if I remember right.

Heime wrote

I want to start using layers.

What learning materials are you using?

Have fallowed what's been instructed and added the dimensions in a Dimensions layer.