yes Don

you have a lot of choices
master keyboards could be a real one with conventional keys or mini keyboards easy to carry with you when you travel with your laptop.
Personally, I have different extra keyboards each one for a specific use.
You can expand to sounds /voices capacities of your arranger or other keyboard in limitless ways. Only need a computer (laptop) and a keyboard (but not neccesary if you use your tyros connected to the laptop). It depends on your needs

Serge