2 quick questions

can i get instrument and one shot sample names on the the keyboard in matrix edit>

is there any way of controlling virtual and logic instruments sound selection within arrange, rather than having to open them each time to change a sound?

2 quick answers

no

and

no

explanations

only if you set up a mapped instrument which is cabled to your virtual instrument object; and then only names for C and F keys will show

Sort of a workaround: you could create a multi instrument that you cable to your virtual instrument. If you have all the names for the Virtual synth in your Multi Instrument and the Virtual synth accepts program changes then you could have 128 names available. However I'm not sure of any virtual instruments that accept bank change messages.
EXS-24 does not accept program changes.