Data entry and validation with custom number formatting

Hi,

I am seeking a solution for the following topic:

- two cells have data validation set up as a list being {1,2,3,4,5}
- the first call has general number format while the second ons is formatted as a custom number format being: "0;;-"
- data entry in these cells is now possible either via the drop-down menu or directly into the cell
- however: while in the first cell manual data entries are possible as {1,2,3,4,5}, I can enter into the cell with custom number formatting only {1,2,3,4), i.e. neither the entries "0" nor its formatted 'value' of "-" are being permitted by the data validation

Is there a way to set this up differently, format it differently etc. so that I can input values into the cell containing the data validation also manually and not only via the drop-down (ideally in both ways, i.e. in the form of the actual data valiation ("0") as also in the form of the formatted 'value' ("-"))?

Thanks