I want VSCode to show powershell function signatures within the open parentheses.

For example, if I create a file file.ps1, enable the Powershell extension, and then type into the editor

"my string".Replace(

when the cursor is after the ( I want a popover dialog to show the possible function signature parameters.

I know the

When I click the arrow, or pressing Ctrl Space again, it will expand another box to the right. If I move my mouse over that text and wait a second, a smaller white box appears that is a little easer to read.

Afaik, this is mostly what VSCode has to offer for intellisense. If this isn't working for you, then let us know and hopefully someone can figure out why.