[Feature request] Like cusor, it supports selecting the number of lines in context, but currently only supports single files.

[thinkasany]

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

The cursor allows you to copy any number of lines from different files into the context, making the recognition very accurate.

Describe the solution you'd like
A clear and concise description of what you want to happen.

copilot only supports adding lines to a single file, making its context significantly less powerful than cursor.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.