Saved Asset Search with field for computers connected in the last X days to be Used in biling of connected assets in the last month

I would sugest, a new Saved Asset Search with field for computers connected in the last X days to be Used in biling of connected assets in the last month, the available option righ now is the oposite: “Hasn’t checked in for days:” I would like the option, “has checked in”, this in a invoice would bill the computers that connect in the last X days (30days, for example)