Artmourse - they are referring to the proprietary product "Tridestra" where the progestogen is taken for two weeks in a 12 week cycle.
If you look at this link and scroll down you will see it listed:
https://www.menopausematters.co.uk/perimeno.phpTridestra: Estradiol valerate 2mg
Medroxyprogesterone 20mgs for 14 days/3 month pack.
Generally long cycles like this are not recommended if you are early-mid-peri as you can get breakthrough bleeding if ovulation stills happens farily often, but there is presumably no reason not to use it if you are post-menopausal and don't want to have to take progestogens the whole time, as well as late peri as suggested for the product. You could go to the forum home page and do a search but I seem to remember that maybe bleeds are quite heavy on this regime for s ome women so might not be that popular, depending on absorption of course?
Hurdity x