Differential Pair Rules

Pair to Pair Rule with Track to Track Clearance of 0.4mm


Same Diff Pair Rule

The Same Diff Pair Rule is useful when the diff pair gap is less than the global (All to All) clearance rule.

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Grids

Grids can be turned on/off (visible/invisible) in the View Configuration panel.

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Snap Grid, Snap Distance, Grid. Can't Set "Grid", What Does "Grid" Mean. - Altium Discussion Forums

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Rats Nest Disappeared

Try . . . Design > NetList > Clean All Nets



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Get a Room !

To edit Room Vertices use Control Click

Rooms can be combined with Filters to Copy and Paste selected primitives. 

Example:

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(WithinRoom('CPU') And OnBottom) And (InPolygon Or IsTrack) And InAnyNet

Example 2: Vias and Copper Features On Top Layer

(WithinRoom('CPU') And IsVia) OR (OnTopLayer And NOT InAnyComponent AND WithinRoom('CPU'))

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