Got my Zulus and a question on setup

Just received my Zulus lfr yesterday from High Pressure Pneumatics.
Great looking scope and light weight. Mounted perfectly on my Urgan2. I have it mounted currently on a tripod so not scare my neighbors..lol
I am currently reading all the content here and the English forum.
Almost overwhelming, but informative.
I'm already stuck on figuring out how to change from mm to yards.🤔.
Seems like I can't quite figure out the proper sequence of tabs to push.
I found distance units in menu and fond the 2 choices mm in blue and yds in black, switched to yards turns blue, but for the life of me I can't figure how to save it. Instructions indicate pushing items 14 and 15 in manual.
Please help
 
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1000001635.jpg
 
Got the Zulus sighted in today. Zero at 35 yards. I will setup the ballistic calculator later,
But let me tell you 1st shot in middle of bull, not adjustment. I proceed to put 10 in bulls. X and Y were factory at 00 on a 0MOA rail I shot Hades .30 I saved profile and continued to 50,60,70, 80 and 100 using mildots along the way with satisfying results although I think I'll final zero at 50 with the urgan2 I'm sitting at range now waiting for the resident groundhogs to came out..lol
More work to do but I'm happy.

Only negative is my old eyes and the limit of visability but all workable.
And yes ...please Arken make the reticles a little bigger. 😉