I have a question about working with Altium Designer Software. I put some devices in schematic, but I do not want all of them importing to PCB. I mean I want to mask some part of schematic in such way that software does not import those parts into PCB. Would you please tell me how to do it? Thanks in advance
Double click the part in the schematic (or select multiple parts and use the inspector). Change the "Type" of the part to Graphical (or to Mechanical if you want it on the BOM even though it doesn't have a footprint on the PCB).
For more info on the options available, see here.