How to decrease the amount of significant digits/zeroes after a decimal? Cloud

Clients have asked for there not to be 8 digits after every decimal for currencies. I saw that a solution would be to edit the $sugar_config



How do i make this change happen on a cloud instance of sugar? I believe i need to resort to the default of 2. I created a case but they said there was nothing they could help with beyond pointing me at this 9-year old feature request (https://portal.sugarondemand.com/#supp_Bugs/71713). Any ideas?