Thank you for your hard work. You’re welcome!
I really like the whole package of all 4 drawings on the main house. Thank you!
By the way, I have a question.
Are these drawings totally final once we approve them? No. Your approval means we move on to Construction Documentation Phase and indicates we’re in agreement to proceed to next Phase.
Or you can change minor details even after the county’s approval? Depending on  how “minor” the changes are — some changes can occur after agency approval. Interior finishes or lavatory hardware can change for example but even a slight window location adjustment can not without going back to agency for additional review.  
I am asking because I just find minor detail changes for our likings.
Like these points,
* On the east view,
I prefer to have sets of those 3 windows and one above it moves toward the front door by 3 feet or so.

Yes, we can do this to be more like the original window. However, since 1994, we need to have 4’-0” of shear wall here for normal framing because it is a corner and exterior wall condition. If you’re ok with non typical framing, and the extra cost of replacing the seismic wall material with steel we can discuss with the structural engineer for a replacement shear wall device (perhaps the engineer would be ok with a Simpson Strong Wall instead, etc. Overall added cost can sometimes be between $2500-$5000. The cost will depend on the engineer’s recommendation and design and could be more than $5,000 in some cases if he would rather include a steel frame on this wall because we have already removed the shear wall on the south side of this wall with the new pocket door). The Strong Wall option means purchasing the steel material for the wall but also a different attachment and footing detail (also additional engineering costs to consider). This may be a good question for the structural engineer now. You should bring an engineer on board soon — we have the documents for them to bid on the project. Please let me know if you would like me to move forward with this modification despite cost or if you would like to discuss with engineer. This is a change we can make during the Construction Documentation phase. The other consideration is the centering of the pocket wall now that you have a glass door on the south side of this east wall. 

 
* Sequentially,
to have the door pocket move to the center of the living room and make the sliding door into 2 pieces.

The door pocket on the east Living Room wall is currently intentionally centered exactly between the built-in book shelf face a the Living Room wall on the south side (to match your original as-built condition) — it is centered on what would be considered, visually, the center of the Living Room if you are standing in the middle of the Living Room looking east.  If you want the centered pocket to be wider to push the window closer to the front (on north side) we would need to reduce the width of the sliding glass door on the south side of the east Living Room wall to maintain centering of the pocket, etc.  Am I understanding your request correctly?

 
* To get sufficient shading onto the living room,
have a trellis-like roof extension below the roof area above the pouce (living room). Yes, Can you confirm you want a trellis-like roof extension beyond the overhang on the south roof overhang at the Living Room Deck?
 
* To make the smaller koshi slider wider to cover the pantry room window. Yes
 
* To make the location of the hinges on the door between the dining room & living room.
(Attaching the hinges to the structure on sliding door side) Yes
 
* To make the wall area (next to a refrigerator) 2x wider and make the sliding door into 2 pieces. Yes, Can you make a sketch? Do you want two pocketing doors for the Master Bath? I’m unclear about “2 pieces?”
 

* The location of the ofuro tub and a shower head. Please clarify (feel free to sketch on the drawings).

If these can be changed later times, please, go ahead and
submit these or move into section drawing and all.

   These should be changed now. We have the Construction Documentation phase to complete before submitting to the county agencies.

Also could you explain the design process before starting to build?

Let me know what thoughts or requests you might have.

Once Schematic is complete, we will continue design, more at the detail level, in the Construction Documentation phase.
Please provide materials you might be interested in specifying now. 
Once permits are obtained and bidding begins some minor changes can occur (see above), and non structural details can be elaborated on without having to go back to city.