Expand 2nd and 3rd level menu items on mobile view

Hi, when viewing the menu on a mobile device
Is is possible to have the 2nd and 3rd level items to have the "slide and expand" behavior like the top level items. ?
Thanks

Hi Buzibuzi,
Thanks for contacting us and choosing our product!,
Mobile on the menu item "level of 2.3 ..." it will show up.
The purpose we do so to help users not to click too much on mobile. Thanks
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Best Regards
__NT__

Hi, i didn't understand. can this be done ?
if so, how ? is this in the configuration settings ?
Thanks

Hi Buzibuzi,
Really sorry. config not do that.
From the beginning we do. wrote in JS and CSS files. in back-end configuration does not impact. Partly we do. when treated with JS in "level 2.3 .." we are not in control of error.

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Best Regards
__NT__

Please help to understand where this change is in the js code for this to be possible.
thanks

Hi Buzibuzi,
I'm sorry, I can not help you. It related to JS, and CSS bootstrap, very much. It's too hard for me so I can tell you understand. I'm really sorry you again.
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Best Regards
__NT__