Dear all,

I'm redesigning my title block using the property building tab. In the title block 4 version including there date can be stated, see picture"

When version 1 is made the other version numbers and their date may not be visible. For the version numbers (2,3,4) I'm using a checkbox, when it is unchecked it give a blank value using the spacebar. For the dates this option does not exist resulting in showing the dates. How can is solve this still using a date type for these properties?

I'm not able to give a blank date in the property tab, how can i do this?