This is one of the most requested features and it finally made it to production.
With this newest release you can define up to 6 actions per Logicblock!
Just click "Add IFTTT Action" to add more actions.
Custom delays between the actions are not yet implemented because that needs some additional work in the backend. For the time being, the actions will be executed in the order as seen on the Logicblock with a short delay of 1 second (to make quite sure that IFTTT will receive them in the correct order).
But rest assured, the Multi-Actions are already prepared for delay configuration and that feature will be the next!