Yes, I understand your issue and we have logged an enhancement for this and will take it up in one of our future releases.
On a side note, are you on QPS 7, 8 or 9? Starting with QPS 8, there is a feature called conditional search where you can save all the parameters for the search and keep one of the parameters as an ask/prompt parameter. So, when the user runs a search it will run the search against all those pre-defined search settings and also promp/ask the user to enter the value for the parameter defined as ask.
E.g., Show me all assets where the creator is Admin
and the name contains Fruit
and last modified date is "".
Now when you save and run this query, it will prompt you to enter the value for the Last Modified Date and here you can enter something like Today-3, Today-5 etc., without having to create a new query with all these paramters each time to look for assets matching these search conditions.
I hope this info is helpful.
PS: If you don't mind me asking, which company do you represent pl.?