Sure
For Vote:
var manager = new TransactionManager(GoodKarmaWif, ChainManager.KnownChains.Steem);
var voteUp = new VoteOperation()
{
Author = "steepshot",
Voter = "good-karma",
Permlink = "c-lib-ditch-1-0-for-graphene-from-steepshot-team-under-the-mit-license",
Weight = 10000
};
manager.AddOperation(voteUp);

TransactionManager work like TransactionBuilder in Phyton. This class compose operations into a transactions and broadcast them (in AddOperation).
This is not the final version!
We will continue to develop functionality immediately after increase productivity of Cryptography.ECDSA (We found the critical performance issue in System.Numeric.BigInteger.PowMod - all work fine for PC, but on smartphone time for signing take up to 10 seconds).
Currently only Vote operation supported, but adding the rest of the operations should be simple