However, if you are solo-mining simply include the transaction into your block when calculating it.
And you need to find software which let you manually choose transaction, since i don't remember any up-to-date mining software for solo mining (unless you open-source pool server)
coz i heard there's will be update to bitcoin network so i can manually approve by point my antminers s9 to thix tx !
If you meant support/decline a network update, your hashrate won't make any noticeable difference.