It doesn't work if you write variable for version number
If we write the dependency line like this:
implementation "com.squareup.retrofit2:retrofit:"
It works.
If we write the dependency line like this:
implementation "com.squareup.retrofit2:retrofit:2.4.0"
And put the cursor before 2.4.0, and push Ctrl + Shift + Space buttons,
It works.
But
If we write it like this one:
implementation "com.squareup.retrofit2:retrofit:${retrofit2Version}"
And put the cursor before $ sign, and push Ctrl + Shif + Space buttons, it doesn't bring anything!
fix commit: 6f3e3b7a15cbfad2900d1e6f475867e559f7ff04
It works as below with Ctrl + Shift + Space.

@siosio Is it possible to improve it like when the developer push Enter on the suggested number row, update the version number on the variable, not overwrite the $version keyword?