With the layout for services being in the stacked method (Select Category then select Service). It would be very handy to assign multiple categories to the same service. This way would allow for a slightly better presentation of the online booking and easier for stylists and receptionists to find the correct services. Im sure this may happen in the beauty industry as well. An example. Bleach application. I currently have three different bleach applications all the same time all the same price. 1x is in Bleaching service category, 1 x Vivids category, 1 x Root application Category. This keeps it clean for the online booking system allowing the client to find their service needed easily and the staff can always find it easily but when it comes to price increasing I have three services there to update all with 6 different levels stylist pricing to update.