Once it has at least one vote, it cannot be edited anymore.

Important is to be able to have this option, for example, if you voting for elections, who do you think that will win the elections, and voting starts 1 year ago till now, maybe you change you mind.

Or if you are voting for the best car for 2020, poll starts middle of 2020 and ends 31/12 maybe new cars will come out or maybe you change you mind. Thats why this is important. Just add it like option, the vote to be locked or not.

1) if you are going to add the option for changing vote, this is very helpful if you have a poll, for long period.

You can edit the poll only if it doesn't have any votes yet. Once it has at least one vote, it cannot be edited anymore.

2)During voting to be able to add or remove an option / reply

We'll discuss with our team and let you know. 

3)Set the number of available votes for each member

We're really sorry, but the addon doesn't have such a feature. Currently, you can only enable/disable the "Multiple Votes" option. 

1) if you are going to add the option for changing vote, this is very helpful if you have a poll, for long period.

2)During voting to be able to add or remove an option / reply

3)Set the number of available votes for each member