You can change a hatch pattern by selecting an object and changing the pattern listed on the Brush page of its Properties window (see Properties Window).
If you want to edit a hatch pattern, you will first have to explode it (see Exploding Objects). For associative hatches, you must first explode the object into its boundary and hatch components.
You can find any tool by the Menu Structure HERE: https://turbocaddoc.atlassian.net/wiki/display/TC20UG/Menu+Structure
You can find the menu location of any tool by name HERE: https://turbocaddoc.atlassian.net/wiki/display/TC20UG/Tools+Mapped+to+Menus
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