Buyer agents won't be tripping over each other wanting to show your property, since I assume the instructions are to deal with you, the owner, and they see it as doing twice the work from the point of the offer forward.  

I'm an entrepreneur at heart and have had success on the mainland starting and managing a couple businesses there (non-real estate related).

How could you give guidance and instructions to others without knowing what needs to be done?

There are plenty of entrepreneurs in the UK property market who do very well, from the Candy brothers down to the average Joe who bought a couple of flats in Wimbledon at the right time and lives off the proceeds.

What does your lease instruct them to do?

If we don't hear back from them within one week, we schedule the inspection at our convenience and do it with or without them.If they are moving out, we give them their move-out instructions and include a cleaning guide.

Aquarion water does online payments so that can be scheduled.If you have the recurring bills set up in QuickBooks you should just create step by step systems of instructions in Evernote or other software. 

messages that allow you to gauge if guests need anything, "Check-out instructions" messages so that turnover is smooth, and so on and so forth.

‘Showing up’ to your business allows you to interact with other entrepreneurs on a similar path.

Look for the instructions on setting up iCal for your listing and you should be good to go.