A limited set of actions can assigned via macro commands. Incompatible actions are ommited from the generated macro. Also note that Macros are limited to 15 lines each.
possible pre-release xhb layout for viper
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MMO mouse using 1-= keys set by default for hotbar 1. Ctrl1 thru Ctrl= for hotbar 2. Shift1 thru shift= for hotbar 3
2 is for AOE combo > stays at the top 1 is for Standard combo (single target) > main bar 3 is for Role skills