Miscreant Owner disrepecting Standing Orders

We held our AGM/SC meeting recently.

The Standing Orders was accepted by the majority of the owners as the first item.

An owner present (represented by a proxy) was asked to leave the room to recompose herself for 5 mins on a number of occasdions before being admitted back into the meeting room due to breaking the standing orders.

She was asked many times if she wanted to exercise her right to vote as the owner, which would have voided the proxy. She decline.

At no time did we banned her from the meeting. Only asking her to recompose herself outside of the meeting room before coming back in to observe.

Now she is threatening to take us to NCAT for denying her rights as an owner to be present during the whole meeting.

Some of the owners are fed up with her and want her banned from future meetings if she continues to have a proxy present.

Can we do this?

Can she threaten us?