Hi,
As far I knew there is no provision for Select options in CDS View. Instead you can have Input parameters in CDS view.
So, you can create 2 input parameters( one for passing low value and the other for high value) And then in the where clause use <field_name> >= low_value and <field_name> <= high_value.
And you can consume that CDS view in another CDS view or in openSQL.
hope this helps,
Regards,
Kiran