Intellisense-like features in Visual Studio - Function and parameter short description

Hello,

I just discovered some of the features of the Intel Fortran Compiler in combination with Visual Studio (2015), like "Go To Definition" and "Find All References", who are really cool!

For intrinsic functions like SQRT, there is a function and parameter description/summary available, which tells you what does what (see attached pictures). However, for custom functions, only the type of the parameters is shown, and no function summary. Is there a way to add comments to functions / subroutines which are then shown just like for intrinsic functions?

Thank you,

Tim