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?


Open MOZC Settings > Advanced Tab

Mozc_settings window

Click ✅Apply.