Shift + Romaji => Katakana, MacOS like behavior

To input Japanese scripts, I am using iBus and its romaji input.
To input Japanese katakana, I want to use shift key. For instance,

a -> あ
shift a -> ア
ka -> か
shift ka -> カ

I have heard similar things can be achieved on MacOS. Can I do this on ubuntu?

>Solution :

Open MOZC Settings > Advanced Tab

Click ✅Apply.