SAP Query creation date issue

[#1]

Hello Team, 

I am facing one issue in SAP query, 

Requirement: - Just to remove field hardcode value in Query, & field level condition in Infoset.

Now After regenerate Infoset & adjust to query, one field is not visible in selection screen of Query.  

In SQ01, creation date field select option check box is not visible inside query. and it is greyed out in the selection list, so because of this creation date is not visible in selection screen.

What should I do to get the field in selection screen?