Now you proved how much you misunderstood. Because normally you always posted only friendly to everyone. Hence why I started “with a fresh mindset”.
Sorry I posted on a wrong day, where you saw it and didn’t like it at all.
I never am what you suggest here, and I would be ashamed if I did. My praise of you always has been honest.
Just forget it, best for everyone.
I am reading this with a fresh mindset. I don’t quite understand how automating the re-modeling of something that has already been modeled would be useful. If I’ve already made it once can’t I just copy the one that’s made? Or componentize it? Under what circumstances would it be useful to have the program “build” me another one?
I agree with @endlessfix. It seems to me that the main motivation for macros in other apps is when you can select a base data item and repeat the same sequence of operations on it. For example, applying it to a different set of cells in a spreadsheet. What would be the new base data for repetition of a sequence in SketchUp? How would it be obtained? How would the result differ without additional new input along the way? So far I haven’t come up with a way it would yield a different result other than position in the model - but that variation is easily achieved via copy.
I totally regret that I posted at all.
This now just wastes my time trying to justify why I spent my time here. But I’d consider it rude not to reply to a friendly comment, so:
I wasn’t saying SU needs another feature like that, did no one notice?
I was saying that I am glad that SU HAS a feature like that.
I even wrote how ("right click, “play it again” "), mine at least.
And I even hinted “I don’t know where I got it from, but following a great video”.
So why on earth all this discussion after my meant-to-be-helpful-hint-to-the-OP(!) post?
Whatever! I cannot possibly make my description of how it works more “understandable” than what I already wrote:
“So like, you drew some complex geometry (say a stair, as was in the video I remember I once watched) and angled it and raised it. Now you “play again Sam” and with EACH SINGLE KEYSTROKE (whichever you set in keyboard shortcuts) the ENTIRE sequence is repeated: here, yielding a spiral staircase, indeed 
”
Maybe all you guys lashing out at me instead just look up the video and get the tool if you want it, and stop posting if not?
Would that be in everyone’s interest?
Surely in mine. Thanks. And AGAIN, sorry that I posted at all!
I think you might be talking about the Memory Copy extension by Adam Billyard.
Was this the video you meant?
That extension isn’t actually recording keystrokes or mouse clicks. It works by comparing the position of two copies of a component to create a transform and then applies the same transform again to create a new copy or copies. You could open an old file from before you installed the extension and it could copy the difference in position, rotation and scale between the two copies and make new copies by moving and rotating by the same amount. It is a very handy extension, but I don’t think it is working the way you think is with repeating your actions. Its main advantage over the built-in multiple move/copy is that it can do rotations and scaling too.
You are such a rude, impertinent person, why?
I normally don’t even subscribe to such forums because always there is at least one beast ambushing the friendly people, all of a sudden.
And indeed, here you are!
How dare you write such insults when that davidsketchuped was so extremely polite.
Besides he helped or meant to help the first poster, what’s that gotta to do with you?
Why do you play the big boss here? Trying to have the highest post number or what?
You clearly did NOT understand this, your own “answers” prove that! Your “answers” to nothing, because you haven’t been asked anything!
How about shutting up instead of insulting people - and keeping many like myself from even wanting to be here.
Tell you what: the only “snotty” - rotten snotty - person on this page is you! Shame on you.
If I could report you here, you bet I would.
Maybe stop programming and chatting here so much, and start socializing with actual people to gain some social skills?
But who am I to give you suggestions: you believe you know everything best anyway!