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I have a disability that makes it difficult for me to double-click quickly enough to be detected, even after setting double-click speed as slow as possible.

screenshot showing Double-Click speed slider set all the way to the slowest extreme

Is it possible to set it even slower or program a mouse button or key combination to trigger a double-click?

I am using a MacBook Pro (2019) with OS 12.6.5 Monterey.

Edit

Commenter Alan helpfully pointed me to Accessibility Settings specific to the mouse/trackpad. While that did not enable me to make the speed slower or to assign a key to double-click, it does support setting a facial expression or using a hardware switch, which I can presumably purchase. I successfully set it to register a double-click when I stick out my tongue, which does properly express how I feel about the limitations on speed but is not suitable for when I am teaching online. I will look into buying a switch but would still welcome other hacks that would work with the existing hardware (keyboard or mouse).

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    Did you explore any of the Accessibility Settings specific to the mouse/trackpad
    – Allan
    Aug 3, 2023 at 14:43
  • I had not. Thank you for pointing me there. I will update my question. Aug 3, 2023 at 14:52
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    Do you have a 'more than 2 buttons' mouse? Many have a button in the scrollwheel mechanism; as well as just simple scrolling action you can press it. That could be set to double-click using something like USB Overdrive or Steer Mouse. [I've had my middle button set as double-click since the mid 90s] These days I have a multi-button Logitech, which can do it from its own control panel - i.sstatic.net/yI4DP.png
    – Tetsujin
    Aug 3, 2023 at 15:00
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    Thank you so much, @Tetsujin! It looks like you found a solution. It seems that any Logitech mouse with their customization software will work, although I haven't been able to find great documentation. I hadn't known about USB Overdrive or Steer Mouse. Aug 3, 2023 at 16:05
  • Glad to be of help. I'd recommend going to a large high street/retail park computer store, where they'll have a whole aisle full of mice you can test. Comfort/ergonomics you can really only test hands-on. You will also know at a touch if they have a clickable wheel, &/or any other buttons in easy reach that you could assign to this or additional useful tasks. [I actually have the button just below the wheel set to 'close window' or in Email, delete (you can set these globally or per-app)] The more buttons you have in easy reach, the more you can avoid hard-to-reach key combos etc.
    – Tetsujin
    Aug 4, 2023 at 8:47

2 Answers 2

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After comments…

Replacing a standard mouse with any that features an extra button inside the scroll-wheel itself would then allow you to set that as double-click [or, in fact, any extra button over the standard 2+wheel].

This is a feature of many 'premium' mice. The mouse itself may come with appropriate controlling software to allow you to set this assignment. If not, there is 3rd party software such as SteerMouse or USB Overdrive which can enable this [& much more] functionality.

This is a screenshot of part of my own Logitech Options mouse control panel, showing just such a feature, which I have been using in various forms for 30 years, for similar reasons.

enter image description here

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    Thank you. SteerMouse did what I needed without additional hardware. I then decided to buy a Logitech mouse (the Triathlon), and their software allowed me to remap a button so a single click was a double-click. I still wish OS X would accept slightly slower double clicks, but at least I have workarounds. Aug 7, 2023 at 14:59
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    Welcome. The advantage of having a double-click button is you can set your system's double-click recognition back to 'normal' & things will double-click faster then you could do it manually, even if you had 'normal' ability. I can actually generate double-clicks at the slowest speeds, but this is just so much slicker & easier for me to do on a repeating basis. After a while you actually forget you're 'cheating' & it just becomes second nature. I'm lost without my own special mouse button setup.
    – Tetsujin
    Aug 7, 2023 at 15:04
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I asked the same question on the Disabled Techies Slack and was told about Better Touch Tool, which enables mapping many different actions (keypresses, touchpad touches, trackpad actions, mouse clicks) to different actions, including double-click.

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