Few issues With Office Template

Hi guys Good morning how are you ^_^
I have few issue with office template on my website could you please take a look

1. Downward icon is not displaying as shown below
https://snipboard.io/r4pfBW.jpg

2. "Main Menu" is not showing on right hand side of website
https://snipboard.io/8PS7fV.jpg

Here is current back end setting for Main menu
https://snipboard.io/oRCOdh.jpg

Please correct me if setting are wrong

3. on mobile device Bottom Menu options are not showing please check attachment for reference


and one more question

4. How can i hide those kind of secondary activities from main stream so that other users can only see Main activities

https://snipboard.io/pmJCPj.jpg

Thanks