Eclipse setup for Geogebra not according to plan

I have been configuring Eclipse for use with Geogebra so that I can create applets that run on a web page. I have rarely used Eclipse.

I am following instructions on the page https://dev.geogebra.org/tr... to set up Eclipse.

For the most part, the configuration seems to work out well, up to step 6, where the instructions don't quite match what I see on my window:

File -> Import -> Gradle -> Gradle project

• My window has a "File" menu, but "Import" has "Import ..." instead, which makes me wonder if I am in the right place. At any rate, "Import ..." leads me to a separate dialog, which contains Gradle as a selection, but its subselection has "Existing Gradle Project", instead of "Gradle Project"
• I guess the real question here is, what was the starting window of these commands? I assumed it was the main Eclipse application.

• Select the "geogebra" folder from the workspace (i. e., enter something like C:\workspace\geogebra for Root folder).

• I need to click "Next" to get to a place where I can enter a directory name. It is where it requests a "Project Root Directory.", so I enter "C:\Users\...\eclipse-workspace\geogebra". The name of this window says "import gradle project".

• Click on "Build model". 

• There is no button that says "Build model" in this window. There is an active "Finish" button on the bottom, but it is unresponsive.

I am running Windows 7 and have the latest download of Eclipse Java.

Paul