[c-nsp] Question on HSRT and MST protocol

[coueffe charly]

Hi,

I want use HSRP and MST but I'm two questions.

The first point : HSRP.

When I use HSRP between two routers I use one group for one virtual IP. 
I ask me, if I use for example ten VIP, I must create ten groups?

hostname Ra
ip address a.b.c.253 255.255.255.0
standby 1 ip a.b.c.254
standby 1 priority 110
standby 1 preempt
standby 1 authentication xxxxxx


hostname Rb
ip address a.b.c.252 255.255.255.0
standby 1 ip a.b.c.254
standby 1 priority 90
standby 1 preempt
standby 1 authentication xxxxxx


Vip group 1 : a.b.c.254


The second point : the MST Protocol.

Can I secure my region or  instance MST as HSRP with the authentication? 
What is the command?

Thank you for your help.

Charly