"Press and hold" modifiers in Final Cut Pro not working

[FranckWalden]

Hello, I’m new to KM and I’m pulling my hair out over things that should be very simple.

Basically, I want to stretch an image by holding down the left mouse button along with the Alt key (this allows me to stretch the image while keeping the top-left corner fixed).

The problem is that despite the macro to simulate holding down the Alt key, it doesn’t work when I stretch the image.

Am I missing something, or does FCP not work well with KM?

Thank you for your help!

I tried that too, but it failed again

[Airy]

@FranckWalden

The problem is that despite the macro to simulate holding down the Alt key, it doesn’t work when I stretch the image.

I think you should read this post:

Macro "Select or show a menu item" + key pressed

If the system sends any events, they will have the modifiers set to the real modifiers. If Keyboard Maestro sends any events, it will have the modifiers set as configured in the action. So Press and Hold a Modifier is generally only useful when other things are happening. Such as launching an application: [image] Even then the application may choose to look at the hardware modifiers. Of course, typing the "Lib" will release the option key. I believe it will then be re-pressed. It's pos…

...which says:

If Keyboard Maestro sends any events, it will have the modifiers set as configured in the action.

I think what that means is that the modifiers are set "if KM sends any events" not "if you press the mouse." In other words, the action to press a modifier effects only keystrokes and mouse clicks that are generated by KM, not by you.

There's a chance I'm wrong about this, but that's how I read the post above. Perhaps I can be corrected by one of the real experts here.

[Zabobon]

Yes, @Airy is right. This is not going to work.

A Keyboard Maestro simulated held down key will not work in conjunction with a mouse button held down to replicate what dragging the mouse with that modifier key held does in an app.

It would be nice if it could and in the past I made a few unsuccessful attempts to try to find a way. There was a discussion about this recently.

"Press and hold option" doesn't work on Pro Tools for zooming

When I replicated your first Action there was a yellow warning triangle on the top right of the Action. Clicking the warning triangle showed this: [image] So, basically the "held" key will release at the end of the Macro. If your test Macro is only one Action long then it will "hold" and then release the key in a split second. In your screenshot you have a second Action that releases the key. So, either way your Macro won't do anything. But a bigger problem is that even if Keyboard Maestro …