Shared Tabs: "Split However You Like" for Recurring Payments

Users are currently able to add Recurring Payments to Shared Tabs already, and users are also able to split one-time payments between other Tab members, but they are currently unable to do both. All I propose is that these Recurring Payments can be have their split distribution altered, as they are currently greyed out (with the caption “we will always split this evenly, even if it increases”).