have you looked at the “simple meal for 2” here ?
https://support.wp-pizza.com/twentytwelve/our-menu/user/
“2 minimum selections required, 2 maximum selections allowed”

re videos:
that isn’t really practical with the 1000’s of options one could possibly come up with (and 1000’s more the plugin wasn’t even designed for but I have seen being used for those – like special offers etc )

you should most certainly – first of all – fix the “sending QUERY packet” error
http://stackoverflow.com/questions/30753674/error-while-sending-query-packet

although i do not think this is caused by wppizza actually, if anything makes your db connection fall over it will of course impact everything (just setting the max packet size to something higher than default will probably do the job there)

regarding the actual issue, i cannot really test/see anything as you seem to have changed validation and/or codes

nor have you told me if disabling other plugins/theme fixes the issue or not , so i cannot say anything else really

you can have a “normal” multisite setup (https://codex.wordpress.org/Create_A_Network) or you could also – for example- use categories and sub categories for your restaurant

as i understand it, you want to send different emails to different restaurants , which the multisite setup already provides

what you do with email2http.net (or why you would even need to or want to use that ) is up to you. I cannot advise you there

there’s also this
https://support.wp-pizza.com/downloads/wppizza-delivery-by-postcode/
and this
https://support.wp-pizza.com/topic/after-every-order/

either or which may or may not be useful to you

it’s not very likely that this would cause the cart to not work by the way (but might of course cause other issues somewhere)

>So I edited the file directly in wppizza-order-print.php
that’s never a good idea. copy it to your theme first

>(is this a bug?).
no, sounds more like you have not set the right template to use in the cloudprint plugin (at least since v3.4 of the plugin)

regarding the rest, i.e. print margins, maybe someone else can help you (printer manufacturer perhaps or some google search) that has that printer

>It worked!
hooray !

> I`m really impressed by your great service!
one does one’s best….. :)

>If there`s anywhere I can leave you a review
absolutely: https://wordpress.org/support/plugin/wppizza/reviews/

cheers

wont need any testing your end. (most likely. not today anyway)
i will try and fix this somehow and release an update which you can just do when it shows up in your plugin page (assuming you have the license activated)