hi i watch the in veronika mobile there there were 3 dots at the top of categories so when i touch these three dots catergories boxes were hiding
but somehow these buttons are not visible any more . So in short
uses in mobile theme of veronika cannot hide the categories anymore .
Any idea please what to do to bring them back thanks ?

I do not know about such dots for categories.

hi i am gonnna show you screen shots


as you can see in one image categories are visible and there are 3 dots next to it .

but as i touch on it . It gets disappear the categories this thing is comming when i search the page but i want the same in main page so users can hide or visible the categories by touching the 3 dots please just let me know
how i can add this to main page thanks

You can find code in inc.search.php and inc.category.php

man i am not so much expert i am very simple person can you please give me the code and tell me where to add it ? so i can have the same setting on the main page also thanks

No, we provide support, not custom work.
I recommend to look for developer if you have no idea about coding.