without some screenshots of your settings (regular ingredients and custom groups) , a link to a page where i can see what you are describing i cannot really comment other than to ask you:

what exactly do you consider unused ingredients / why are you saying they should not appear if you have defined them ?

there are two filters you could use (first one for the boxes on the left hand side, the other for the ones on the right

/**allow order change - or indeed additional boxes - by filter**/
$box=apply_filters('wppizza_filter_reports_boxes_left',$box, $datasets, $range_restricted);
$boxrt=apply_filters('wppizza_filter_reports_boxes_right',$boxrt, $datasets, $range_restricted);

it should be relatively straight forward to add to the $box or $boxrt array depending on the dataset results i would think – just have a look as to what it’s there to start off with as a guide to what the array should look like
(i assume you know how wordpress filters work )

Seems to me you might be looking for something like this perhaps ?
https://www.wp-pizza.com/downloads/wppizza-stockmanagement/

>Is this possible?
in short: at the moment, no. there is no “combined menu” possibility/plugin – or whatever you might want to call it – in existence. (Not to my knowledge anyway)
One could probably – in theory – create some discount of some sort for this depending on what’s been put into the cart but I hazard a guess the idea is to be able to offer a “2 schnitzel with 2 beers” – i.e a combined menu – sort of thing with different taxrates depending on what’s part of that menu
this is currently not implemented (and no plans exist to do this in the sort or even medium term future from my side)

Sorry, only items that belong to the same (sub)category will be combined into the same (sub)category

no

not every order that gets started , gets completed so you will have what you call “empty orders”
even so, what’s the issue/problem ?

>…wasn’t sure it would do this kind of stuff…

no, it does not.
all it does is open the shop/site for ordering outside your regular opening times for an order to be fulfilled during your opening times (with some timeslots 5/10/15 etc minutes per hour during your openingtimes)
,though there are a couple of more settings that can be set to tweak some things a bit more

It does *not* do anything like “order “item A” now (lets say on the 10th Feb) for it to be *only* available on the 14th Feb for example

hope that clears things up…

since i cannot reproduce this here, it’s all kind of guess work , but we can try a couple of things regardless
as laid out below
( especially given that it seemingly works fine with COD orders so my current guess would be it’s a priorities issue somewhat…)

a) in wppizza-delivery-by-postcode.php you will find at approx line 60
add_action( 'plugins_loaded', 'wppizza_dbp_set_version', 11);
change this to
add_action( 'plugins_loaded', 'wppizza_dbp_set_version', 1000);

and save that file

b)in v3x.php at approx line 36 you will find
add_filter('wppizza_filter_formfields', array($this, 'wppizza_dbp_output_formfields'), 10, 2);
change this as well to read
add_filter('wppizza_filter_formfields', array($this, 'wppizza_dbp_output_formfields'), 1000, 2);
and save that file

try doing a paypal order and see if this now gets picked up in it and let me know

(i assume here you are comfortable with editing a few lines of php code , if not let me know)

“Cannot start session” errors MUST be fixed. a lot of things – and the issue described might well be one of them – will not work if this is the case

please see
https://docs.wp-pizza.com/troubleshooting/?section=headers-already-sent