Ann: Renounceable Rights Issue to Raise up to $6.2M, page-62

MGTR are the rights you have been offered to buy shares for the capital raise.
You have been offered 3 rights for every 11 shares you own.
You have 3 choices of what to do with your MGTR:

You can use those rights to purchase an equal amount of shares for the stated price in the prospectus (26 October) (This will involve a BPAY payment or similar directly to the company)

You can sell the rights on the market for market value (MGTR on the ASX).

You can let them expire and get nothing.

If you don't convert your rights to shares you will be diluted by this raise.
Hopefully that's all pretty straight forward. Tried to make it easy.