Writing item in custom drop using assign

Dear SilverFin,

Is it possible to write values to items in a custom drop using assign instead of input?

So instead of doing:
{% input period.custom.mod.datum as:date %}

Calculating the date and modifying the item in the drop:
{% assign period.custom.mod.datum = some calculated date %}

With friendly regards,

Hi Tkais,

Unfortunately this is not possible.

Best regards,