Hide bar numbers; meter signature each staff

Writing my own piano method.
I need to hide bar numbers and I need a meter signature on each staff.

For hiding bar numbers, see here.

For time signature on every staff: do you mean at the start of each system, e.g. in a part? In a full score, time signatures are shown on every staff by default unless you’re showing large time signatures. I’m not aware of an option to show the time signature at the start of every system automatically, so you might have to reinput the time signature manually where required.