Can I change the time increment from 15 minutes to something else?
Sure. Click on the Filters tab in the grey, left side of the calendar. If you're on a screen that shows time scales (like the Day, Week, Schedule or Grid screens) you'll see a setting for "time scale increment" toward the top of the screen. Simply change that from 15 min to another value. (Only the values shown in the pop-up list are supported. If you need another increment, get in touch with SeedCode and we'll put something together for you.)
As the developer, you can control the default for the time scale and the default start time. You do this in the script "Load Calendar Settings - On Startup --- Edit Configuration Here ---" right after the comment "Load default start times" and "Load default time scale".
Can one calendar view have a different default time scale than the others?
Yes. Each of the calendar views is its own tab, and each tab has an object name.(Look here for more info on working with these tabs.) You can give one or more tabs their own default scale. For example, here is how you create a default scale for the grid view, whose tab object name is "Calendar Resource Scheduling - Horizontal":
How can I see more all-day events at the top of the screen?
Screens that show time scales (like the Day, Week, and Schedule screens) show all day events at the top of the screen in a separate section. The calendar shows 7 such events by default. If you'd like to see more you can drag the grey row separating the all day events from the timed events.
If you'd like to permanently change the number of all day events show, edit the script "Load Calendar Settings - On Startup" in the Settings and Sources section of scripts. You'll see a place to specify the number of rows right below the comment "How many rows should be used to show All-Day events on Day, Week, and Schedule screens?"
Note that you'll have to run the "Upon Opening" script to see your changes take effect.