Need an extra field sent to Sendle

Hi,
I have been speaking to sendle and they think what I need is a good idea and suggested contacting you. I need the plugin to read the checkout addons which gives special delivery options eg leave out the back, must have a signature etc which sounds hard. OR alternatively build it into your plugin so it directly adds driver delivery notes to Woocommerce checkout and then into the sender system.
This is a clincher as the person I’m doing it for is a brilliant person who makes wooden toys but suffers from a stress disorder. He loves using sendle but can’t handle this one issue.
If I wrote plugins I’d do it lol but I can see this would also be a good selling point for your plugin and sendle??
I’m keeping my fingers crossed.

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