Summary:
Requesting a feature to accept Copilot suggestions up to and including (f motion) or up to before (t motion) a specified character (i.e., leverage Vim’s f and t motions).

Example:
Given the suggestion:

The quick brown fox jumps over the lazy dog.

• Typing a key sequence like fj would accept and insert:

  The quick brown fox j
  

  (up to and including the first j in the suggestion).

• Typing a key sequence like tj would accept and insert:

  The quick brown fox 
  

  (up to but not including the first j in the suggestion).

Rationale:

• Provides granular acceptance of suggestions.
• Mimics familiar Vim motions for efficiency.