Using-Altium.md

@@ -136,4 +136,11 @@ To make a new symbol:
     1. Change the Grid to whatever you want, somewhat often, but not all over the place - maybe like 200mil.
     1. You can also adjust the size of the holes - Diameter 35mil, hole size 25mil is a good size
 
+- Making little holes in a certain spot on the board - like around the SMA input:
+    1. Repour your polygons
+    1. Tools > Via Stitching/Shielding > Add Shielding to Net
+    1. Change the Net to whatever net you want to shield
+    1. Change the Grid to whatever you want, somewhat often, but not all over the place - maybe like 30 mil.
+    1. You can also adjust the size of the holes - Diameter 25mil and hole size 15mil is a good size.
+
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