Add Travel time between appointments - Padding

Hello support,
I am having trouble adding either ‘admin’ or ‘padding’ time between my appointments with the AP+ plugin.
I work mobile, therefore I need time in between my appointments to travel from one person to the next (at least 30 minutes) and every configuration I have tried doesn’t seem to give me this time!
My three services range from 30, 60 and 90 minutes and I need the plug in to automatically calculate the appointment time plus travel time so I do not end up with double or overlapping bookings.
I have tried multiple combinations with the plugin and I can’t seem to find anything that works, and more importantly, doesn’t allow someone to book in directly after someone else.
I would be grateful for any help. Hopefully it’s just something that I’m overlooking or getting the settings muddled so it can be a quick fix.

I have enabled remote access so you can have a look to try and see what I may be doing wrong or advise if this is just a shortcoming of the plugin.
Thank you