Is it possible to create a button that opens the corresponding table by inputting the table name?

Sadly there is no direct way of doing that. The table names we assign are like domain names, they are just a front for the real name that is assigned by Ninox.

If you create a new formula field and put this in:

debugValueInfo(select tablename)

you get something like:

nid(["A1","A2","A3","A4","A5","A6","A7","A8","A9","A10","A11","A12","A13","A14","A15"])

nid tells you that the record has table and record Id info. The A is the table name that Ninox knows.

There is currently no way to typing in "A1" and having Ninox know that you mean table 'A', record 1 when you type it in.

One way around this is to create a new choice field and a new button. In the choice field you would create a list of table names. Then in your button you could do something like:

openTable(text('Select a Table'))

The field 'Select a Table' is my choice field.

Or you can create separate buttons that take you to each table?