New Responsive UI - Updates Required to all Absence Types to disable Advanced Absence Entry Feature

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We have the Advanced absence entry feature enabled for all of our absence types (all 500 or so of them) in the classic UI. But in the Responsive UI I'm told that it is defaulted to allowing multiple-day absences, so having the Advanced Absence entry feature enabled actually makes it so that it's not possible to enter in multiple-day absences.

The workaround provided was to disable the feature, but how are we supposed to do this for the hundreds of absence types that we have? Does anyone know if there is an alternative workaround to making the bulk changes? The spreadsheet loader appears to only be for new absence types, not for making changes to existing absence types.