I would find it daunting to write content for all those people for the synod. I am slow enough with updates that such a task would certainly not help. I suggest that for the named persons (Erasmus, Luther, and Zwingli) that others (you?) select bits of their actual writings and use those. At this point the ideas of the reformers do not differ from thoe of OTL 1520. As for all the other church folks, I'm not sure how to handle them. Ideas welcome on this.
OOC: All I want is a summary of the Clergy's general opinion on reform and protestantism, and also I hope that bringing the two leaders together will have effects on how their doctrine develops. Surely bringing Luther and Zwingli together in one place with each other and with senior clergy before it happened OTL will have some impact on their theological teaching, and is therefore a highly valid action for a player to make? This is, after all, an alternate timeline. If theology remains the same as in OTL regardless of whatever I do, that misses the point a bit.
I may also desire to do things with/to the people invited when they arrive in Venice before the Signoria. I don't need the opinion of each of those characters; I just need to know which of them do something notable at my Synod.
Also, the invitation to speak of all the people I invited is very clearly necessary for the calling of a Synod; therefore, I invited them. They don't all have to say anything important.
It appears (and correct me if I am wrong) that you are trying to ascertain the degree to which the reformation is impacting northern Italy. If this is the case, I might suggest an alternative. Let me work out on my own how and where the reformist movemment is spreading, based on my "plan" and player orders (some may wish to supress and others encourage). Then i will include a section in the update on what's happening where. That write up might provide nough guidance for the next turns orders. What do you think?
My planned Synod is not exclusively for that purpose. I specifically desire to see what the people and Signoria actually think of the reformation when it is presented to them in the form of a Synod, and I specifically want an important ecclesiastical event to happen in Venice this turn, and I specifically want Luther and Zwingli to come into contact/conflict/agreement with each other and with senior clergy early, in such a way that it potentially actually changes history.
If this is too complicated or difficult or time-consuming, so be it; I won't do it if you don't want me to. But then again, it's what I actually want to do as a player, and, as this is actually an alternate history, I say it should be allowed, and allowed to have the logical impact on history that it would actually have had if it had happened.