If your RTS control groups rely on function keys, first check whether your candidate keyboard's layer or remap lets you select every group cleanly in real play. Sticking with dedicated, directly pressable F-keys is necessary only when those alternate mappings prove unreliable during a match.
Choose by How Your Groups Reach F-Keys
Start with the Keys Your Game Actually Binds
Your group bindings define the test, so list them first. Open the game's hotkey settings and write down every F-key that selects or recalls a group. Skip function keys you never touch. The F-keys on that list are the ones a new layout has to deliver.
A dedicated function key takes one press. On a compact board, the same F-key may sit behind a layer. That means you activate the layer and then press the key. With a remap, the result depends on how the candidate keyboard is mapped. The F-key command might move to another physical key or to a key combination.

One documented example shows what a layer adds. In QMK's Fn-layer example, the Fn key is defined as MO(_FL). It moves the keyboard to a function layer only while Fn is held down, and that layer puts F1 through F12 on its top row. In that setup, every group selection becomes a two-key action, and one finger stays on Fn whenever you need an F-key. Your candidate keyboard may handle this differently, so check its actual mapping before you test.

Test the Candidate in Representative Play
Run this check before you give up a dedicated function row. The result decides the layout.
- Load the candidate's real layer or remap. Use the same game and the same group bindings you play with now.
- Play a representative match, or a long stretch of one. Cycle through every bound group while you do the rest of your usual routine, such as moving the camera, issuing commands, and building.
- Watch the game's selection feedback. Note any group that fails to select, any wrong group that gets selected, any layer hold that feels awkward, and any clash with other keys you press while the layer is active.
- Decide. If those problems keep coming back, keep direct function keys. If the alternate access runs the same routine dependably, a compact layout is a reasonable choice.
If the test sends you back to direct F-keys but you still want a smaller board than full size, a layout with its own function row is the next thing to look at. Our 75% keyboard guide explains how that layout keeps function keys next to direct arrows, and you can narrow down the 75% keyboard layouts we carry from there. To weigh mouse room against key access on a tight desk, compare compact layouts by measured reach. If you are leaning toward the smallest option, our breakdown of 60% keyboard trade-offs covers which keys you lose.
FAQs
Does the QMK example show how every keyboard handles F-keys?
No. It is one documented keymap where a held Fn key opens a layer with F1 through F12. Other keyboards and firmware can put function keys in different places or reach them differently. Check how your candidate board actually maps the F-keys you use instead of assuming it matches that example.
What if my control groups use only some F-keys?
Test only the F-keys assigned to groups. If your groups sit on F1 through F4, those four keys decide whether the candidate works for your routine. How a compact board handles F9 or F12 does not matter for group selection if you never press those keys in a match.
When should I repeat the test after changing a remap?
Repeat it every time you change the mapping, and run it on the final version you plan to play with. A pass on one mapping does not carry over to a different one. Moving a group key or switching how the layer activates changes what your hands do during a match.