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Featured Product FlexExt

Options Quantity Pro for OpenCart

Official Options Quantity Pro for OpenCart | FlexExt.dev

Product Code: FLX-OPTION-QUANTITY • Availability: In Stock

Video Demo Options Quantity Pro - Radio, Checkbox & Select with Quantity
Key Highlights & Features
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FlexExt Options Quantity Pro introduces granular quantity selection for individual product option values in OpenCart 4 and OpenCart 3. Empower customers to choose custom quantities for each option value (such as selecting 3 Red t-shirts and 2 Blue t-shirts from a single product page) with interactive increment/decrement steppers, parent option sum limits, and accurate multi-tier inventory deduction.

Options Quantity Pro Showcase Banner

B2B Wholesale & Multi-Variant Buying Made Effortless

Standard OpenCart only allows picking one option value per submission, forcing buyers to repeatedly configure and add the product multiple times. FlexExt enables true multi-quantity option buying across radio buttons, checkboxes, and select dropdowns with real-time live price calculation.

Live Multi-Option Pricing

Calculates total cart price in real time as customers adjust individual option quantity steppers (+/-).

Min & Max Quantity Limits

Enforce minimum and maximum allowed quantities per option value, or enforce a total sum limit across the parent option.

Accurate Stock Deduction

Deducts precise quantities from each individual option value's inventory in the OpenCart database upon checkout.

Radio, Checkbox & Select

Works across all selectable option types with modern responsive stepper buttons and numerical input fields.

Clean Cart & Invoice Display

Displays itemized option quantities clearly in the shopping cart, checkout review, customer orders, and admin invoices.

Theme & AJAX Compatible

Tested with Journal 3 and standard OpenCart default themes with zero core file modifications.

Technical Specifications
Compatibility4.1.0.4, 4.1.0.3, 4.1.0.2, 4.1.0.1, 4.1.0.0, 4.0.2.3, 4.0.2.2, 4.0.2.1, 4.0.2.0, 4.0.1.1, 4.0.1.0, 4.0.0.0, 3.0.5.1, 3.0.5.0, 3.0.4.1, 3.0.4.0, 3.0.3.9, 3.0.3.8, 3.0.3.7, 3.0.3.6, 3.0.3.5, 3.0.3.3, 3.0.3.2, 3.0.3.1, 3.0.3.0, 3.0.2.0, 3.0.1.3, 3.0.1.2, 3.0.1.1, 3.0.1.0, 3.0.0.0
PHP VersionPHP 8.3, PHP 8.2, PHP 8.1, PHP 7.4

Version 1.2.9 (2026-09-08)

  • Contact Studio Toggle State Persistence: Fixed issue where unchecked switches (Google Maps, Address, Socials) were reset upon re-opening the menu item editor modal by injecting hidden zero inputs and enforcing strict server-side state normalization.
  • Direct SMTP Email Delivery: Resolved OpenCart 4 Mail adapter parameter configuration, eliminating SMTP hostname errors. Form inquiries now deliver instantly via verified SMTP with Reply-To customer email and complete phone/message information.
  • HTML Entity Sanitization: Stripped duplicate HTML entity encodings from headings and button titles.

Version 1.2.8 (2026-09-08)

  • In-Menu Interactive Subcategory Tabs: Hover or click on left subcategories dynamically switches products on the right track without page reload.
  • Edge-to-Edge Widescreen Covers (16:9 / 1.87): Scaled thumbnails to 320x171px with object-fit cover, removing white/grey borders.
  • Anti-Truncation Product Cards: Expanded card width to 250px and enabled 3-line titles to prevent clipping.
  • Fullwidth Clean Category View: Eliminated redundant left sidebar on category views with modern thumbnail cards.

Version 1.2.7 (2026-09-08)

  • Horizontal Scrollable Showcase: Smooth scrolling product tracks with circular navigation buttons and AJAX cart additions.
  • Deep Category Path Traversal: Automatically queries products from all nested subcategories.
  • Featured Products Priority: Featured extensions naturally display first in dropdown displays.
  • Admin Controls: Configurable product limits, sorting options, and custom product selection.

Version 1.2.6 (2026-09-07)

  • Continuous Inline Navbar Flow: Inline logo, navigation items, search, and cart rendered in a single, unified flex container.
  • Contact Studio Viewport Clamping: Multi-column layouts safely clamped to screen viewport to prevent overflow.
v1.0.0 Official Release
  • Initial release for OpenCart 4 (Extension ID #12116).
  • New Option Types: Select with quantity (select_qty), Checkbox with quantity (checkbox_qty), and Radio with quantity (radio_qty).
  • Storefront interactive quantity steppers (+/- buttons and number inputs) for option values.
  • Real-time dynamic product price recalculation on option quantity change.
  • Cart & Checkout multi-quantity calculations: option price is multiplied by chosen quantity (price * qty).
  • Full compatibility with standard OpenCart options, invoices, order history, and emails.
  • FlexExt Commercial License verification & stealth developer telemetry exclusion.

Yes, FlexExt Options Quantity Pro - Radio, Checkbox & Select with Quantity is officially built with dual-engine architecture natively supporting OpenCart 4 (4.0.0.0 through 4.1.0.0+) and OpenCart 3 (3.0.0.0 through 3.0.3.9+). Separate, optimized packages are provided for each platform.

Absolutely. All FlexExt extensions undergo continuous regression testing against Journal 3, the default OpenCart theme, and major Bootstrap 5 and Bootstrap 3 storefront templates with zero layout interference.

The extension supports PHP 7.4, 8.0, 8.1, 8.2, and 8.3. The codebase is strictly typed and optimized for modern PHP JIT compilation and opcache performance.

Upon purchasing the extension on flexext.dev, you receive a unique Commercial License Key in your customer account. Simply paste this key into the module settings in your OpenCart admin to instantly unlock all features.

Not at all. Performance is our primary benchmark. The extension uses indexed database queries, lightweight vanilla JavaScript without heavy third-party dependencies, and zero Cumulative Layout Shift (Zero CLS).

Yes, licenses allow activation on local and staging development environments (such as localhost, *.test, *.local, or dev/staging subdomains) alongside your primary live production domain.

No. All modifications are strictly implemented via standard OCMOD XML (in OC3) or native Event Interceptors and Extension Controllers (in OC4). Your core OpenCart system files remain 100% untouched.

Yes, 100%. The frontend layout dynamically adapts to all viewports including smartphones (iOS / Android), tablets, and high-resolution 4K desktop screens with touch gesture support.

You can download updated .ocmod.zip packages directly from your flexext.dev customer portal. Upgrades preserve all previously saved settings and database records without data loss.

Uninstallation cleanly deregisters controllers and template injections. Your product catalog, orders, and customer databases remain completely intact and safe.

Yes, full multi-store support is built into the architecture. You can configure individual rules, settings, and behaviors per store instance from a single OpenCart administrative panel.

Yes, the extension does not harvest or transmit sensitive customer personal data to third-party tracking services without explicit administrator configuration.

Comprehensive step-by-step documentation is included in the package and on the product tab. If you encounter any edge cases, our technical engineering team provides dedicated assistance via flexext.dev.

No. All frontend outputs and routing respect standard OpenCart SEO keywords, canonical URLs, and are fully compatible with server-side caching modules such as Redis, Memcached, or Varnish.

We stand behind our software with a 100% functionality guarantee. If the extension does not work as advertised on a supported OpenCart installation and our support team cannot resolve it, you receive a full refund.