Component editing mode

In the Component editing mode you do not draw anything, but you define the following:

which Footprint variant is used
which Symbol is used (called Gate within the component)
which names are provided for the Gates (for example A, B)
which attributes are available (for example 74L00, 74LS00, 74HCT00)
Additional user-definable attributes
if there are equivalent Gates which can be interchanged (Swaplevel)
how the Gate behaves when added to a schematic (Addlevel)
the prefix for the component name, if a prefix is used
if the value of the component can be changed or if the value should be fixed to the Component name
which pins relate to the pads of the Footprint (CONNECT command)
component description