Add "cycle sides" repeat behavior for left/right half (parity with first-two-thirds)

[statico]

• This is a new bug that hasn't been documented in a closed issue or in the Readme.

(Thanks for making Rectangle! It's great.)

Repeatedly pressing the firstTwoThirds shortcut toggles the window between the left and right two-thirds of the screen. firstThird and firstFourth behave the same way. However, the leftHalf / rightHalf shortcuts have no equivalent "flip to the opposite side on repeat" behavior, which feels inconsistent.

Currently, with leftHalf bound to a single shortcut, repeating it cycles through displays or sizes, but there is no option to toggle the window to the right half on a single display.

FirstTwoThirdsCalculation (and the matching third/fourth calculations) inspects the last sub-action and automatically toggles between leftTwoThirds and lastTwoThirds. I would naturally expect the same toggling from leftHalf ↔ rightHalf, especially since the half commands are the most-used.

Current workarounds:

• Bind both halves to separate nearby shortcuts
• Use firstTwoThirds instead, accepting the wider window

Related issues:

• [Feature] - One shortcut for each direction #973 — proposed direction-based cycling; was resolved by adding the same-side resize cycle (1/2 → 2/3 → 1/3), which doesn't flip to the opposite half.
• Quick way to swap two halves of a screen #110 — "Quick way to swap two halves of a screen" — closed with no description; title is ambiguous and no swap action exists in the source today.
• Unable to rotate through First 3rd, Left Half, First 2/3rds with Command+Option+Left Arrow #1297 / Cycle-through not working for half screens #1287 / Repeated command - cycling "snaps back" when releasing. #1738 — bug reports about existing cycling, not feature requests for side-flipping.

macOS version: 26.4.1

Rectangle version: v.0.95 (101)

Logs if applicable (In Rectangle menu, hold option, "View Logging..."):

2026-05-13T11:22:21-07:00: AX sizing proposed: (756.0, 949.0), result: (756.0, 571.0)
2026-05-13T11:22:21-07:00: AX position proposed: (0.0, 33.0), result: (0.0, 33.0)
2026-05-13T11:22:21-07:00: AX sizing proposed: (756.0, 949.0), result: (756.0, 949.0)
2026-05-13T11:22:21-07:00: leftHalf, display: (0.0, 0.0, 1512.0, 949.0), calculatedRect: (0.0, 33.0, 756.0, 949.0), resultRect: (-0.0, 33.0, 756.0, 949.0), srcScreen: Built-in Retina Display, destScreen: Built-in Retina Display, resultScreen: Built-in Retina Display
2026-05-13T11:22:22-07:00: Current frame is equal to new frame
2026-05-13T11:22:22-07:00: Current frame is equal to new frame
2026-05-13T11:22:24-07:00: Current frame is equal to new frame

[rxhanson]

Thanks for the feedback. My thought is that this would simply be another option in the Repeated commands setting in the General tab. I don't mind adding this into an upcoming release.

Side note on #110, there is the reverseAll action in the source for it. It can be configured via Terminal command if there's desire for it.

If you have a single screen and have Repeated commands set to move to adjacent on left or right, then you can execute this Terminal command to have it switch sides:

defaults write com.knollsoft.Rectangle traverseSingleScreen -bool true

Then restart the app:

killall Rectangle
open -a Rectangle

[statico]

Thanks! That works for now! I switch between multi- and single-display setups often, so I'll need to try it on multi-display as well.

[statico]

Unfortunately, this still isn't a complete solution, as it doesn't work on multi-monitor support. Still feels kind of strange, since the 1/3rds and 2/3rds hotkeys do exactly what I think it should do, but the half doesn't.

🙏🏻

[rxhanson]

Sounds like you're looking to have another repeated commands option for switching sides, as mentioned? I'll see if I can roll it into the next release.

In the meantime, there is another option that went into the last release, where you can set the same shortcut for both left half and right half, and it will toggle between the two (again, not specifically what you're looking for, but perhaps something usable that already exists).

(Yet another option would be to make a custom size/position in Rectangle Pro where you can specify the initial action and its repetitions as desired)