Hi. I did a brief search and didn't see that this has been asked before.
It's not uncommon to need to place a Pause Until action immediately before a matching action. For example, I have macros that use Safari's Replace Tabs menu item, but occasionally that item isn't quite available as Safari just launched. So I've placed a Pause Until action immediately before the Select action.
This is a suggestion for a future release to include a "Wait Until" checkbox with certain actions. This feature could apply to all actions which can identify an interface element by name or image. For example Resize a Window, Select or Show a Menu Item, Press a Button, etc. A default timeout would be needed for this option.