Is it possible to set the exchange rate with keys to a value less than 1?

Is it possible to set the exchange rate with keys to a value less than 1?
I would like to allow players to exchange one of the special items available on my server (e.g., a Bitcoin or a coin) for 10 keys.

Example:
"Base Exchange Rate (currency per key)": 0.1,

Hey! So the exchange rate only takes whole numbers. 1 is the lowest it goes, which means 1 item for 1 key. If you put 0.1 in there the config wont load at all. Youll get a config error in console and the plugin falls back to default settings, so def dont leave it like that.

Regarding the exchange of keys for items:
Currently, the system only allows for exchange settings where the number of keys is equal to or less than the number of items. I would like to request that it be made possible to exchange a single item for multiple keys.

Since multiple keys are required for gacha pulls—yet the current system necessitates an even greater number of items—it would be very helpful if the settings allowed for the input of decimal values.