If I understand correctly you are asking how to modify a Cover Fill that is a applied to an object (slab for example). If that is the case the best way is to create a New cover fill with the needed parameters using Menu->Options->Element Attributes->Fill Types.
Eduardo Rolón AIA NCARB AC27 US/INT -> AC08
Macbook Pro M1 Max 64GB ram, OS X 10.XX latest another Moderator
If I understand correctly, you are seeing the bitmap version of the pattern, instead of the vector.
Go to View menu, On-Screen View Options, and select Vectorial Hatching.
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--Roberto Corona-- www.archiradar.com
AC18 - ITA full on Win10
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