This is the third of a series of four #justthetip articles showing you how to master the primary keys you need to Command and Control ARCHICAD… in this article we will take a look at the Alt key and what it does in ARCHICAD.
The Alt key can be shown with a variety of symbols… alt, Alt, ALT or even Options on some older Apple keyboards! The bottom line is they all mean the same thing!
The Alt key works mainly as a modifier in combination with other keys - but the first action it does all on it’s own combined with only a simple mouse click...
Pick Up Parameters / Set as Default
When you are working in a model with elements already in place, you often need to create something that is already elsewhere in the model.
Rather than manually set the parameters (again!) all you need to do is hold Alt and click on one of those existing elements. This does a number of things instantly... it picks up ALL the parameters, sets them as default and activates the appropriate Tool.
As soon as you hold Alt, you will see the intelligent cursor change and show a Pipette. When you move over any element, it will highlight in blue and show what you are about to pick up parameters from.

Personally, I use this option a lot - even just to switch to a Tool so I can then use Shift (discussed in the last article) to enable me to filter my selections.
Inject Parameters
Now that you have Picked Up Parameters you will likely want to use them somewhere. To do this, all you need to do is combine Alt with Cmd (Mac OS) or Ctrl (Win) and click on the element you want to Inject the Parameters in to.
This time, when you hold Alt+Cmd or Alt+Ctrl, the intelligent cursor will change to show a Syringe. When you move the mouse over any element, it will highlight in blue to show what you are about to Inject the parameters to.

Please note: Injecting parameters can only be done within the same type for element. For example, you can pick up parameters from a Wall and inject them in another Wall - but you cannot inject them into a Slab or Roof.
Here is a closeup of the Pipette and Syringe intelligent cursor symbols in ARCHICAD 20: