Actions are organized into groups, which are displayed as a scrolling list of tabs above the action list.
Groups are lists of actions, and a single action can be assigned to more than one group. Deleting a group will not delete the actions in the group, they will still be available in the "All" action list.
The "All" list is always available and is a complete list of actions in your installation of Drafts.
Next to the "All" button, the scrolling list of groups is available. To select a group, tap its name. Its tab will be highlighted and the list of actions update to only include actions assigned to that group.
Actions within a group can be reordered by tap and hold on an action, then dragging it to a new location in the list.
The search field (magnifying glass) at the top of the action list can be used to filter and locate a specific action by name.
To create, delete or rename groups, scroll the tabs to the right, and tap the edit button (pen icon).
To add/remove actions from groups, swipe to the left on an action to expose its edit button, then edit the action.