Generate an Open Order Report that I can sort by the target "ship date" or "order number"
"What I really need is a continuous list in order, no matter the customer."
Open your Chart of Accounts. Go to the Bottom and double-click your Sales Orders Nonposting Account, to get a Quick Reort on this account.
Now each row is one transaction. Customize this, select what you want from Display tab, such as Date fields and Sort By the one you need to be Showing before you can Sort By it. On the Filters tab, use Paid Status = Open, for only Active SO.
Click on Header/Footer and Retitle this as Open SO by Ship Date. Memorize it.
Change the Sort By To Order Number. Retitle it as Open SO by Order Number. Memorize it, choosing New, not Replace.
Memorize both of these in one Group you named for SO reports, and then in the Memorized Reports list, you double-click the Group to run Both reports at once. Or, youc an run either one whenever you want to.