Editor Logic Pro Mac scores

Hello,

I have several things that ask me questions about Logic Pro scores :

1) Can you change the size of the symbols of the pedal?

2) Can you link the stems of the appoggiatures? And remove the barred symbol to indicate a game about the time of it?

3) Can you get the correct symbol of the two piano bearing system despite one track for the right hand and the other for the left hand? (tracks use the same slice at the mix for info)

4) Why when I change the silence of a score to simplify it (half-sigh+sigh becomes sigh pointed) I have as a note written on the region (only in the sequencer display and not in the noon preview).

Thank you in advance !