How can I nest a drawer menu three times on Spotlight theme?

Store Design
1

Hello

Im using Spotlight theme.

I have a main menu, drawer type menu, and ive got it nested.

The nesting only appears to be letting me nest twice… but I really need it 3 times.

Example:

I lets me have:

Collection - Icons - Artists

I need to have:

Collection - Icons - Artists - T-Shirts

Hope you get what I mean… its a bit hard to understand.

Any help would be appreciated.

Thanks

Carlos