Let’s look at the first of these features, queuing.
1 ) Queuing up construction or production
Quick summary: Add units or buildings to the queue with the hourglass button. These will be prioritized in the order they are added and will be started as soon as the resources are available. Resources may be reserved for higher priority items on a first added - first started concept.
When you click on the unit production menu you will see that you have both the Produce (1) and the Queue (2) buttons available to you. Mobile mode uses the same button, so the first click will begin production and additional clicks will add items to the queue for that province.

You can now click up to 5 times on the Queue button and this will immediately commence the production of an AT unit and have another 4 (max amount of units in the queue) lined up ready to move onto the production line without further action from the player. Your province queue will now appear like this. This means that as soon as the first unit is finished, the next one will start (as long as there are sufficient resources, more on this later)

This feature also works for buildings and you can see we now have a naval base, infrastructure, airfield, fort and barracks queued up to build one after the other.

You can queue up to 4 buildings and 4 units in a single province at one time.
Above we see there is a unit in production and there are also 4 more in the queue but because I have added them after the buildings they do not appear in the small windows. Nevertheless the next unit will start production as soon as the current one has finished production. Mobile users have the advantage that the province will show all units and buildings queued up for that province.
This brings me to the next part of the feature, the Build Queue Menu.
Desktop players will find this tab as a part of the province menu on the right edge of the screen. As of this writing there is not a mobile feature to manage the build queue in this manner, only from the individual provinces.

Clicking on the build queue tab shows us that we have 2 LTs that will be built in Rome and Turin (who are currently building ACs in the above picture) and then we can see all the buildings and ATs that are queued in Naples.

You see that there are numbers in the column to the left. This is the priority of the items. To begin with this is the order in which they were added to the queue. Resources will be reserved for higher priority items and lower priority items will be delayed until needed resources are available.
Waiting for Resources
Highlighting the colored areas on the left side of the column raises a pop-up which advises us that there is a problem with production. In this case we are actually nearly out of oil and production won’t start until we have enough oil. This will happen in 20hrs 48mins at which time production will start. and The unit will be completed in 1 day 15 hours’ time. Note that this prediction is based on the current hourly production rate and items currently in the queue. If oil is purchased from the market or acquired in some other way the production may start sooner.

This is one of the features which causes confusion among players. When there are items which are waiting on a particular resource (oil in this case) then at the moment which the resource is acquired the items will be started. This gives the appearance of a purchase or trade not being completed, or of other resources suddenly vanishing.
Other useful features in this menu are:

1. Time for completion column – useful to know when your nuclear reactor will be ready so you can login and start building your atomic bomber.
2. Priority buttons – If I wanted to raise the priority of the Infrastructure at Naples then clicking on the white up arrow will take it straight to the top. If I clicked the white down arrow it would be the last item in the queue built. The arrow buttons cannot move it up or down one or two places, it is either to the top or bottom. To move something simply a few places you can click and drag it higher or lower on the list. This is very useful if you want the battleship you’ve just decided to produce to start immediately and not be delayed as resources might be scarce and items at the top of the list get started before the battleship. Remember items get added onto the list in the order that you select them so your latest selection will be built last unless you reprioritise here.
3. The Cancel Item button – this cancels the particular item on that row.
4. Clear All – this will delete ALL items in the queue. Very useful if you want to clear the entire queue instead of going to each province and cancelling individually. This feature is not currently available on mobile devices. It is one of features that are being worked on for future updates to the mobile app.
This menu is quite often overlooked but when resources are scarce it is essential to juggle priorities to meet the conflicting demands.



