Add new value straight away in symbology

[Erwinvan_Veen1]

When adding a new value to your symbology, you will have to find the 'Options' drop-down menu to add a new value. This feels unnecessary, because:

1. When you wish to select values already present, you need to click instead of type a value anyway;
2. When no other values are present, there is really nothing else you can do at that point anyway and all of the other options are greyed-out anyway.

Therefore, my idea is to be able to start typing right away.