Binary modifiers ("no onions")

A yes/no preference — like No Onions or Extra Hot — as a two-option group at £0 each.

The most common modifier isn't a multi-option menu like Size — it's a simple yes/no preference: no onions, extra hot, no ice. In Tillable this is a group with two options, both at Extra (£) = 0, with Allow multiple selections off.

Worked example — "No Onions" on a burger

1
Create a group named Onions
From Items → Modifiers, click New group. Name it "Onions". Leave Allow multiple selections off — the customer picks one state, not both.
2
Add two options
"With Onions" with Extra (£) = 0, and "No Onions" with Extra (£) = 0. Leave both on Inherit from item for VAT.
3
Attach the group to the burger
Open the burger product under Items → Products and in its Modifier groups section choose Add existing modifier group, then search for "Onions" and pick it.

Now staff can ring the burger and tap "No Onions"; it changes the order line (and prints on the kitchen ticket) but doesn't change the price, because both options are zero-upcharge.

Tip

This is almost always the right tool for a "no X" or "extra X" preference — cheaper to set up and clearer to staff than making a whole separate product. To see exactly what staff tap when they ring it, see Running the till.

Skipping the pop-up for a yes/no option

A two-option group like this is exactly what Show on the till instead of a pop-up is for. Turn it on in the group and No Onions / Onions become buttons in the till's left-hand column: staff tap No Onions, then the burger, and it goes on the order with no pop-up in between. The button clears itself afterwards, the same way the size buttons do.

If Modifier flows is switched on for your venue, the same switch is called Corner key. It works the same way.

It changes nothing about how the modifier is priced, recorded or sent to the kitchen — only where staff tap it. See Modifiers and options.

When to reach for something else

"Add a side" that costs money — this is a paid add-on, not a binary preference. See Paid add-ons.
A whole meal deal at one price — that's a bundle, not a modifier. See Bundles and meal deals.
Genuine standalone item — sold on its own, not as a change to another product — make it its own product. See Add-ons: bundle, modifier, or separate product?.

Does a yes/no option change my stock?

Only if you tell it to. If you track stock with recipes, every option has a Main item used box — and for a "no onions" style choice you should leave it at 1. The customer is still getting a whole burger; they just don't want the onions.

Give the option its own recipe only if it adds something that leaves your store cupboard. Taking an ingredient out isn't something an option can do — if a variant genuinely uses less of the main product, that's what Main item used is for. See Modifiers and options.

What's next

Modifiers and options — the core build-a-group article.
Paid add-ons — same feature, non-zero upcharge.
Add-ons: bundle, modifier, or separate product? — choose the right tool.