Thanx for the replies guys. I get that knowing verb types is part of conjugation. I also said that I use Bunpro only for grammar. I study kanji and vocab on Wanikani. Probably I havent reached 借りる yet. And just seeing this verb pop up in Bunpro a few times without actually trying to learn it doesnt mean I will know the word.
Also, if you suggest me to learn vocab in Bunpro, then what - should I learn every single word I dont know? That would stop me from focusing on grammar and I would waste a lot of time trying to memorize words instead of actually studying the grammar points. And its not even possible because the quizzes give a dynamic set of sentences, so I physically cant learn all the words that show up. Plus, trying to learn words from quizzes or grammar explanations is a bad idea - there are no memory aids like mnemonics, so I would need to look them up in a dictionary or go to another resource anyway.
As for godan vs ichidan verbs, yeah, I could treat all iru/eru ending verbs as ichidan by default, and sometimes I will run into godan exceptions. But again, I dont want to learn vocab here. I already do it with another resource. I dont want to split vocab study between different places, even if the word is JLPT5.
PS. The undo feature is a good solution, thanx @Gacee
PPS. Bunpro often throws in grammar the vocabulary one level higher than the current JLPT level (I’ve seen people complain about this too).