@Graham80 @Branka-and-Silvia0 @Marzena4 @City-Limits-Ranch0
Sorry to be so late on the scene but hopefully @Graham80 you are still around.
Mate there is a way to do this and I have always believed a picture paints a thousand words so do the following and this should work seemlessly for you
Firstly, Log-on > Host > Manage Listings > Manage Listing!
You are now on your listing editing page....slide across to 'Availability' and click 'Edit' on 'Trip Length'
You will now see this screenshot
OK, that will then take you to this screenshot.....
Now you have your check-in day and your minimum stay requirements for you specific date range set. The only thing that may block you at this point is your prep time so now head back up to the top section in 'Availability' and proceed as follows.....
Once you have done this you should be in business.
Graham just remember to always click save changes when you make any alterations to your listings settings. I can't tell you how many times some enquirer says 'I did that and it didn't work' ....and nine times out of ten it was because they didn't save their changes
Good luck Graham.
Cheers.....Rob
PS: This does not enable you to set a specific check-out day Graham but you can hopefully control that by setting minimum and when you get to that time of the year where you want to have this requirement come into effect you can alter your normal booking settings to reflect maximum stay night of 7 days asd per screenshot and this should stop people who would want to only book for 7-12-15 nights!