How is electronic voting any different from absentee voting with a form or directing a proxy to vote a particular way, also with a form?
On the matter of electing a committee, an absentee member could write on the form that they wish to vote for or against particular candidate, should they stand, if nominations are not already known. They could nominate someone and indicate their intention to vote for them if that nomination were seconded by anyone at the meeting. They might alternatively line someone up to do that.
I once had an absentee owner use our form to specifically vote against me and another committee member if we were renominated. This did not present a technical problem and the votes for and against us both were noted in the minutes.