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Before you compare keyboards, pin down what you mean by “programmable function keys”: changing F1–F12, assigning actions to dedicated macro keys, or remapping ordinary keys. Those are different capabilities. Choose based on the actions you need, the software and operating systems they require, the controls’ placement, and how profiles work. If you want extra programmable controls without replacing your keyboard, a separate macro keypad may fit better.
What “programmable function keys” can mean
The Fn key is a modifier: it changes what another key does when you press them together. F1–F12 are separate keys, and their default actions may vary by keyboard; some models let software change the F-row assignments. A keyboard may also have dedicated macro keys, or allow remapping beyond the function row. These options should not be treated as interchangeable. Logitech explains Fn-key shortcuts and F-row customization through Logi Options+ in its Fn key shortcuts guide.
- F-row reassignment: Change the action associated with one or more F1–F12 keys.
- Dedicated macro keys: Use extra keys, often labeled G-Keys on Logitech G-Series keyboards, for macros or other assigned functions. Logitech’s G-Series macro support guide describes creating and assigning these actions.
- Broad remapping: Change the behavior of keys beyond the F-row. Check the exact model’s documentation; support for macro keys or F-row changes does not establish that every key is assignable.
Check what actions the keyboard actually supports
“Programmable” can refer to anything from choosing a preset function to recording a sequence of keystrokes. Verify the action types available on the exact keyboard and in its software rather than relying on the label alone. Look for whether it supports the specific workflow you need, such as a single shortcut, a sequence or macro, or an application-specific action.
For Logitech G-Series G-Keys, the support guide covers assigning macros and other functions. Logitech’s KEYCONTROL guide is another place to check the software’s key-control capabilities. These examples describe Logitech features, not a guarantee that other manufacturers—or every Logitech model—offer the same options.
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Find out which software and operating systems are required
Some assignments depend on a manufacturer application. The Logitech G915 TKL product page says advanced features require G HUB, while Logitech’s F-row explainer identifies Logi Options+ for its function customization. These are separate software contexts: make sure the one needed for your chosen keyboard supports your computer and the particular actions you want.
Also check whether assignments work when the software is closed or when you connect the keyboard to another computer. The available product materials do not establish how every model or assignment behaves in those situations, so confirm profile and persistence details in the exact model’s documentation before buying.
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Count the controls and check their placement
Count only the controls you expect to use, then check where they sit. Dedicated macro keys can add controls without taking over the F-row, but their position and number affect how easily they fit into your workflow. A compact layout may save desk space while omitting keys or changing their placement compared with a full-size keyboard.
The Logitech G915 TKL is one documented example: its manufacturer page lists three macro profiles, and its quick-start guide shows G-keys and macro profile controls. Check the exact regional model and layout before purchase; this example does not establish what another configuration includes.
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Consider profiles, connections and form factor
Profiles let you group assignments, but check how they are selected and whether they suit the way you switch tasks or applications. Logitech’s G915 TKL page lists three macro profiles; it does not, by itself, settle how assignments persist across computers or without vendor software. Confirm those details for the specific model and setup you plan to use.
Connection and size can also determine whether a keyboard works for your desk. Logitech describes the G915 TKL as supporting LIGHTSPEED wireless through a receiver and Bluetooth. Verify the connection options and operating-system requirements for the exact model you are considering, particularly if you need to move between devices or avoid a receiver.
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When a separate macro keypad makes more sense
If your current keyboard is comfortable and you mainly want additional programmable controls, consider a keypad rather than replacing the whole keyboard. Logitech describes its MX Keypad as an LCD programming macro console. The manufacturer says it requires Logi Options+ on recent Windows and macOS versions. Treat it as an adjacent option for adding controls, not as a full keyboard or proof that all keyboards support the same features.
Quick Recap
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A practical pre-purchase checklist
- Decide whether you need F1–F12 reassignment, dedicated macro keys, broad remapping, or a combination.
- Confirm the exact actions supported, including whether you need shortcuts, sequences, application-specific actions, or presets.
- Check the required software, supported operating systems, and whether your assignments depend on the app running.
- Count and locate the controls; confirm layout, regional configuration, and full-size versus compact dimensions.
- Check how profiles are selected and whether assignments persist across computers or when vendor software is unavailable.
- Verify wired or wireless connection options against your setup, or consider a separate keypad if you want to keep your existing keyboard.
