Use 64-bit F# Interactive
Select this checkbox if you are working on a 64-bit machine and want to run the dedicated 64-bit version of fsi.exe or fsianycpu.exe, which uses the machine architecture to determine whether to run as a 32-bit or 64-bit process.
Shadow copy assemblies
F# Interactive blocks an assembly file it's using, which prevents you from rebuilding the project. With this option enabled, F# Interactive creates and uses temporary copies of assemblies, while assemblies remain accessible to other processes.
Move caret down on Send Line
With this option enabled, the caret in the editor will jump to the line next to the line/fragment you've sent to F# Interactive.
Copy recent commands to Interactive editor
This option changes the behavior of the Recent commands feature .
With this option checked, the recent command (selection) will be copied to the F# Interactive editor, but not executed.
With this option unchecked, the recent command (selection) will be copied to the F# Interactive editor and automatically executed.
F# Interactive arguments
Use this field to configure F# Interactive compilation environment by entering appropriate arguments.
The default argument
For more information and the complete list of arguments, refer to F# Interactive options.