You probably won't need to shadow title very often. Clicking in show shelving key will display what the call number looks like to Workflows when it searches by call number. Since most of our call numbers are LC, you probably don't need to se it, but it's kind of interesting and doesn't hurt anything. Serialscat may want to set this to UP-PAT which is the equivalent of the lias location code st. We won't need to use shadow call number very often, if at all.
Type is the item type.
Serialscat will have to change the item type routinely, so the default setting won't be extremely helpful to us. Don't forget to use REF-ITEM for all items in a Reference location. Shadow copy won't be used often, if at all. Leave it blank. We'll be ignoring all of these for now.