Safe Mode (kustom editor without evaluating formula)

Sometimes evaluating code can come into halt, especially when using fl. Adding mode to be able to edit theme without any kode evaluating will be nice. I just experience this myself when I use fl to cycle through calendar, which is fine when editing but few hours later there’s no calendar entry and crashed kustom. A way to check trough code will be very nice in case I forgot what caused the error.