Roselet Welcome aboard here ...
When you book "Anytime" that's the area in which you will eat and that will be different that those on first seating. So yes you are correct about eating together on a Set time.
That being said. Lots of options are available to you and your group including Specialty dining that includes extra costs.
Another option is : Casual
Described as follows:
International Marketplace Dining
You asked for more variety in the evening and here it is. In line with our globally influenced blend of classic and contemporary cuisines, Chef Jacques Van Staden presents the International Marketplace, with favorite flavors from around the world. Includes:
• Made-to-order Pasta Station with assorted baked pastas, breads, salad bar and condiments • Two made-to-order Stir-Fry Stations • An authentic made-to-order Curry Station with all the extras such as Raitha, Papadums and Paratha • Appetizer and Entrée Station including antipasti, cheeses & cold meats; Carving Station; Grilled pork chops, New York steak, chicken breast & fish; two types of fresh vegetables; a Loaded Baked Potato Station; and selection of gourmet sauces including béarnaise and traditional gravies. • Two, fresh made-to-order Sushi Stations • Made-to-order Pizza Station-open until 12:30 AM-featuring antipasti and fresh garlic bread • Dessert Stations with a nightly rotating selection of desserts, one of which is sugar-free
It's a buffet as supper I guess is the best description and that might look after you on several nights coming back after Tours etc. and you could eat with the others at fixed times on nights you wanted to join them as long as you booked with them at a fixed time before cruising.
There is an ebb and flow to dining on all cruises and on longer cruises getting to feel that after a few days your dining staff may be able to adjust certain things to help you all out .
So I might suggest fix your time early with all your family and then adjust your specific times to tours by eating casual or splurging with a Specialty restaurant for a time or two. The extra cost for the Specialty restaurants are just a fee charges to cover the upgrade & includes the "TIP" for staff there.
as someone said there are no questions that are out of order here. We will try to help.
Ask away if something doesn't make sense to you.