Redmine

Hello, please help.

My Environment is:
Redmine version 4.1.0.stable
Ruby version 2.7.0-p0 (2019-12-25) [x86_64-darwin18]
Rails version 5.2.4.1
Environment production
Database adapter Mysql2
SCM:
Subversion 1.10.3
Git 2.24.1
Filesystem
Redmine plugins:
additionals 2.0.23-master
redmine_auto_watchers_from_groups 0.0.3

• role : sellerA
  sellerB
  global setting: Members of visible projects

• group : group A
  : group B
  : group C

• project. : project A

• user : userA include role sellerA, include group A, include project A
  : userB include role sellerA, include group B, include project A
  : userC include role sellerB, include group C, include project A

--------------------------------------------------------------------------
I logged in as: userA

1) Overview - projectA - members
I see - userA,userB,user C
- I would like see only users from groupA, because I am member of group A for project A.
Is it possible ?
- How can I hide overview members for project A?

2) I create new issue for project A
1) In list box assignee I see: userA,userB,user C
- I would like see only users from groupA, because I am member of group A and project A.
Is it possible ?
- default assignee is empty
Is it possible set assignee by logged user for project A?

2) In watchers I see: userA,userB,user C
        - I would like see only users from groupA, because I am member of group A and project A.

Thank you so much for information