I am a new Samsung user and having some questions. Please advise.

Is it normal that I couldn't open two whatsapp simultaneously? If I am not mistaken, I found that only few apps support this function, not as what I thought of it, all apps can be opened simultaneously.

Besides, I also found that I cannot directly drag the photos in gallery to whatsapp.

How can I customize the sidebar as I found that limited apps only can be put on the sidebar? Need to root only can solve this?

Thanks.

I am a new Samsung user and having some questions. Please advise.

Is it normal that I couldn't open two whatsapp simultaneously? If I am not mistaken, I found that only few apps support this function, not as what I thought of it, all apps can be opened simultaneously.

Besides, I also found that I cannot directly drag the photos in gallery to whatsapp.

How can I customize the sidebar as I found that limited apps only can be put on the sidebar? Need to root only can solve this?

Thanks.