How can I add a sentence after the default prompt?

[lsaint]

The plugin will use the default prompt when I did not specify a prompt.
How can I add a sentence after this default prompt?

[gennaro-tedesco]

You can append to the default system prompt, see here

local prompts = require('CopilotChat.config.prompts')
system_prompt = prompts.COPILOT_BASE.system_prompt.."rest of the sentence"

[lsaint]

thanks