Some other projects needed my attention but I'm back on to planning this.
I did up a quick drawing to double check that I'm on the right track.
To explain the sketch a bit, I want to install the lattice behind a 3ft retaining wall that as of right now holds a hill of dirt, the plan is to terrace it in the future.
I have two concrete footings 8ft apart with PT 4x4 posts. Then 2x4 spans across at the top and bottom. Also a 2x4 in the middle to support the lattice. The lattice is 4x8 so you'll see I'm using two set verticaly (They won't be the full 8ft high, probably only around 6ft).
My biggest concert at this point is putting the concrete footings in the hill behind the retaining wall, they will be set back about 2ft from the retaining wall but because they're above the grade of the backyard am I going to have issues with them moving and settling in the future?