To have the Macros in a Macro Group always ready to be triggered, set the Macro Group to be activated Always. This is the default and you only need to change it if you want to set a group of Macros to be available only after you specifically activate them by pressing a Hot Key.
To have Macros that are active only after you press a specified Hot Key, set the Macro Group to be activated Once After Hot Key. The Macros in the Macro Group will be enabled when you press the Macro Group Hot Key and will remain enabled until either any macro is triggered or you press any other key. You could use this to create a set of related actions with easily remembered hot keys that will not conflict with normal use because they are not activated until you press the group Hot Key. For example, you could have a group of macros to launch various applications and so that Command-Control-L activated the group, and then a single letter press launched the application (eg M for Mail, S for Safari, F for Finder).
To have Macros that are active after you press a specified Hot Key, set the Macro Group to be activated by Toggle With Hot Key. The Macros in the Macro Group will be enabled when you press the Macro Group Hot Key and will remain enabled until you press the Macro Group Hot Key again. You could use this to create a set of related actions with easily remembered hot keys that will not conflict with normal use because they are not activated until you press the group Hot Key. For example, you could have a group of macros to move and resize windows and have Command-Control-W activate the group. Then a single arrow key press moves the front window. When the window is positioned, press Command-Control-W a second time to disable the macros.
To have Macros that are active and displayed only after you press a specified Hot Key, set the Macro Group to be activated Once With Macro Palette. The Macros in the Macro Group will be displayed in a floating Macro Palette and enabled when you press the Macro Group Hot Key and will remain displayed until either any macro is triggered or you press any other key. You could use this to create a set of related actions that do not even need a Hot Key. For example, you could have a group of macros to launch various applications like Mail, Safari and the Finder so when you press Command-Control-L, a palette of these macros is displayed and a single click will launch the application. The macros can still have Hot Key triggers which will be available only while the palette is displayed.
To have Macros that are active and displayed after you press a specified Hot Key, set the Macro Group to be activated With Macro Palette. The Macros in the Macro Group will be displayed in a floating Macro Palette and enabled when you press the Macro Group Hot Key and will remain displayed until you press the Macro Group Hot Key again. You could use this to create a set of related actions that do not even need a Hot Key. For example, you could have a group of macros to align objects in a CAD program, so when you press Command-Control-A, a palette of these macros is displayed and you can click various alignment options (distribute left-right, alight top edges) and then close the palette by pressing Command-Control-A a second time. The macros can still have Hot Key triggers which will be available only while the palette is displayed.
To have Macros that are always active and displayed in a palette, set the Macro Group to be activated Always With Macro Palette. The Macros in the Macro Group will be displayed in a floating Macro Palette and enabled. The palette will close when you press the Macro Group Hot Key and will remain closed (and the macros disabled) until you press the Macro Group Hot Key again. You could use this to create a set of related actions that do not even need a Hot Key and that are available in a Macro Palette. You could make the Macro Group active only in a specific application so that it appears only in that application. For example, you could have a group of macros to align objects in a CAD program, and have the Macro Group active (and hence the palette displayed) only in the CAD program. The macros can still have Hot Key triggers which will be available whenever the palette is displayed.