There is the function of Action groups in which you can put together a number of single actions.
Then there is the option to select a number of action groups in the Actions dialogue (see the check boxes) which are then executed top to bottom in the given order.
You cannot select files with an action.
You cannot renumber files in the same way as the track numbering wizard does (there is no reset of the number when the folder changes) but it is possible to get an increasing number.
see e.g. here: