How to type ㄅㄆㄇㄈ using ibus-rime (on Linux)?

[orchid loom]

I'm using ibus-rime's bopomofo (a.k.a. Zhuyin 注音) input method on Linux
I would like to know how to input the Zhuyin symbols (注音符號) using Ibus rime

[orchid loom]

workaround: https://github.com/rime/rime-cantonese/blob/main/symbols_cantonese.yaml#L86-L90

    # 拼音、註音、聲調
    '/pinyin': [ ā, á, ǎ, à, ō, ó, ǒ, ò, ê, ê̄, ế, ê̌, ề, ē, é, ě, è, ī, í, ǐ, ì, ū, ú, ǔ, ù, ü, ǖ, ǘ, ǚ, ǜ, ḿ, m̀, ń, ň, ǹ, ẑ, ĉ, ŝ, ŋ ]
    '/pinyincap': [ Ā, Á, Ǎ, À, Ō, Ó, Ǒ, Ò, Ê, Ê̄, Ế, Ê̌, Ề, Ē, É, Ě, È, Ī, Í, Ǐ, Ì, Ū, Ú, Ǔ, Ù, Ü, Ǖ, Ǘ, Ǚ, Ǜ, Ḿ, M̀, Ń, Ň, Ǹ, Ẑ, Ĉ, Ŝ, Ŋ ]
    '/bpmf': [ ㄅ, ㄆ, ㄇ, ㄈ, ㄉ, ㄊ, ㄋ, ㄌ, ㄍ, ㄎ, ㄏ, ㄐ, ㄑ, ㄒ, ㄓ, ㄔ, ㄕ, ㄖ, ㄗ, ㄘ, ㄙ, ㄧ, ㄨ, ㄩ, ㄚ, ㄛ, ㄜ, ㄝ, ㄞ, ㄟ, ㄠ, ㄡ, ㄢ, ㄣ, ㄤ, ㄥ, ㄦ, ㄪ, ㄫ, ㄬ, ㄭ, ㆠ, ㆡ, ㆢ, ㆣ, ㆤ, ㆥ, ㆦ, ㆧ, ㆨ, ㆩ, ㆪ, ㆫ, ㆬ, ㆭ, ㆮ, ㆯ, ㆰ, ㆱ, ㆲ, ㆳ, ㆴ, ㆵ, ㆶ, ㆷ ]
    '/tone': [ ˉ, ˊ, ˇ, ˋ, ˆ, ˙, ˜, ˥, ˦, ˧, ˨, ˩, ꜀, ꜁, ꜂, ꜃, ꜄, ꜅, ꜆, ꜇ ]

[devout tendon]

iirc in rime u can use shift-enter (?)