Maybe it's a workflow ignorance thing on my end, Bill, but I can't seem to efficiently filter a class of objects, say "Double Stars", that are above the horizon on a given night at my site, by separation and magnitude deltas, to quickly build a list. Let's say that I want all Doubles visible between 10pm and 1am tonight in Petaluma, that are brighter than magnitude 11, have a system A:B magnitude delta of no more than 3 magnitudes, and a separation of between 2" and 8". How would I build that observing list in SS4?
As others have explained, you can't filter by magnitude delta. Right now the magnitude field will apply to the primary star. Unfortunately this can return hits where the primary is bright and the secondary is really dim. We are going to be making a change such that both components (or at least two of a multi star system) need to meet the criterion for it to be a hit.
The Advanced search is not a full blown planing program. It really isn't a replacement for something like Astroplanner. You cannot filter by range of times, but you can get pretty close by restricting the range of RAs.