Sub-menu expansion to sub-sub-menu

I’m using the wonderful GO theme for my WordPress site and I have the following question.

When hovering over the main-menu the submenu’s appear.
Some sub-menu’s have sub-sub-menu’s which appear under their sub-menu.
I would like to see only an arrow next to a sub-menu if it contains a sub-sub-menu.
When hovering over the sub-menu arrow, the sub-sub-menu should appear
How can I do that in the GO theme

-main menu
---sub-menu -> -sub-sub-menu
               -sub-sub-menu
---submenu

• This topic was modified 6 months, 3 weeks ago by Annan Mig.
• This topic was modified 6 months, 3 weeks ago by Annan Mig. Reason: Trying to insert an image from local machine
• This topic was modified 6 months, 3 weeks ago by Annan Mig.