Support for hierarchical designs – designs where the same section of circuitry is repeated – is an outstanding strength of Altium Designer. This has been enhanced by the addition of parametric component definition, supporting the situation where a component does not have the same value in each channel. Parametric components are defined by declaring their value as a parameter of the sheet symbol above, and then referencing that parameter on the target component.

For example a graphic equalizer can have the same circuit repeated many times, with the only difference between each channel being component values. So a capacitor might take the values 0.12uF, 0.056uF, and 0.033uF in the different channels. Implementing this in Altium Designer is now quite simple since you can specify these values in the sheet symbol holding each channel, eliminating the need to have many similar schematics with only component values being different.