Can you add something to reduce the spawn rate of bamboo and pineapple in the overworld so you can make them more rare?

I like that I can reduce the grouping size of the bamboo but would like to make it more rare or isolate it to the beach like the palms can be.

If it's really irritating you I believe you can change it in the config file.

What's the option to reduce the spawn frequency of those items in the overworld? I only saw options for reducing the size of bamboo groupings.

Sorry, I meant you can stop generation of all Trop items in the Overworld in the tropicraft.cfg file.
Don't know how to just reduce it though.
I think you probably know more about it than I do.