Is there a faster way to creating Keychain entries?

I need help with easy steps to create password by Keychain when Hide My Email address isn’t automatic (by Safari).

For registration user account, iPhone doesn’t always automatically suggest random address; is there better way than following cumbersome steps ?

① switch to Settings Hide My Email 

② create random address

③ copy 

④ paste 

⑤ switch back to said website

⑥ press next for password creation 

⑦ iPhone automatically creates password but doesn’t allow me to copy 

⑧ I have to switch to Settings Hide My email to find last created address

⑨ I have to switch to Settings to manually find latest password created 

⑩ I have to update password with last created random email address 

[Re-Titled by Moderator]