how to access context menu with LG magic remote?



I need to edit my network shares but I made a mistake and I believe the only way to edit it is by going through a context menu.

On nvidia shield remote I could access context menus by long-pressing down the OK button, but on LG Magic remote I tried holding down the button, all the number keys 0-9, all the colored buttons red/yellow/blue/green, the ‘…’ button, but but none of them allow me to access any context menus… pls halp