Recently, by integrating the updated version of Add one-off attr: LastVisit to Pages with the updated version of ABC - Adaptive Bread Crumb, managed to implement persistent storage of lastVisit and, based on that, an automatic “site visit counter”, which now appears in the breadcrumb as 
${visitTimes}.
However, I realized that Page Picker already possesses a similar capability through its lastOpened–based sorting by default. Nevertheless, in the index, pages lack the lastOpened:${date} attribute, making it inaccessible to users.
I find this attribute quite useful — perhaps @zef could help expose it?
That way, it would operate at the index/memory level, rather than relying on the current .md-level “non-query table”, leading to much faster queries on large database and enabling a richer set of query combinations.
