that is in fact part of the https://support.wp-pizza.com/downloads/wppizza-confirm-reject-notify/ plugin (provided “notifications” are enabled in that plugins settings )

i don’t think i understand

a) if you simply want a donation buttom somewhere people can use when they order by phone, there are already hundreds of donation plugin/implementations
https://wordpress.org/plugins/search/donation (and this does not have anything in particular to do with wppizza as such)

b) if you want people to pay by credit card, with an order they are making , then there are of course already plenty of wppizza gateways

c) if people order by phone then most/many will probably NOT want to go to a website/page in the first place (otherwise they could have just ordered it from there to start off with I would have thought)

do you still get the same login issue issue if you clear your cookies (or perhaps disabling extensions – if any) ?

Though I am reasonably sure this used to work just fine, I must have done something at some point that broke this as I get the same result here when using your settings.
I’ll fix that asap in an update (hopefully in the next day or two). Will keep you posted here when i have some news on this front

thanks for letting me know

you need to familiarise yourself with wordpress action and filters and generally really how it does things (see the wp codex)
perhaps something like this in your themes functions php (just as an example, there are a million ways of doing this)

add_action('wp', 'my_export_function_name');
function my_export_function_name(){
	global $post;
	
	if($post->ID == [some post/page id]){
		
	/*
		run the query and print the output or some script that automatically creates and downloads the csv
or whatever else it is you need to do 
	*/	
		
	}
	
}

but please note: this is about the basics of wordpress, i cannot really offer support for this sort of thing in general

some basic action/filter overview can also be found here: https://docs.wp-pizza.com/developers/?section=filters-actions-functions

then YOU have set up something that sends those emails.
the plugin does not do that natively

PS: generally speaking, it’s only a word anyway, and there are css classes associated that would let you use the same background color as a “new” order (for example)

furthermore, you could also simply change “Acknowledged” to “New” (or whatever else you want it to be – maybe “New- Viewed” or something so at least there’s some distinction between the 2) in wppizza->localization “Admin Order History – Order Statuses”

perhaps the following would be simpler in this case
https://docs.wp-pizza.com/developers/?section=function-wppizza_get_orders

i.e something along these lines

$args = array(
	'query'=>array(
		'payment_status' => 'COMPLETED',//get completed orders only 
	),
);
$orders = wppizza_get_orders($args);

/* 
	items for each order 
*/
foreach($orders['orders']['items'] as $item){
	//$item['cat_id_selected'] => [int] category id the item was in when it was added to cart (as an item can belong to multiple categories)
	//$item['item_in_categories'] => [array] all categories an item belongs to (where key -> cat id)
	/*
		do some grouping by catid i would think here , or whatever it is you need to do 
	*/	
}

>Unfortunately, this is not possible
that’s not true.

from the help screen:
“custom opening times: …. If you are closed on a given day set both times to be the same….”

no, sorry

but there’s the cloudprint extension that allows you to directly print an/the order and as that is not an email no subject line would get printed (alongside the concept of printing an order automatically of course)
https://support.wp-pizza.com/downloads/wppizza-google-cloudprint/

there’s also the option to print the order from the order history (wppizza->order history) , which would also not include the subject line (as this is also not an email as such)