# Assigning numbers to the new components in Altium designer?

I am drawing a schematics in Altium designer. I have several schematics (sheets) in my current project. Some of the components have already a designator numbers like R5, C20, L13 ... etc.

But some new components does not have yet, and it is like R?, C?, L? ...etc.

My question: How to make numbers to these new components ? Can one assign numbers to all these components at once ?

• Tools->Annotate Schematic; And Tools->Board Level Annotate. Google or the Help function can tell you more. Too lazy to type it all out right now. – Asmyldof Feb 26 '16 at 13:00

The easiest way to annotate just the new components is to go to Tools -> Annotate Schematics Quietly and click Yes.