Get the plugin here (and feel free to check out Jan's other plugins). It's a small RB file which should be placed in your Plugins folder where you've got SketchUp installed. If you open this RB file in a text editor, you can see some instructions listed.
In SketchUp, JS Move will appear in the Plugins menu. You can set up a shortcut key for it, in the Shortcuts page of the Preferences window. I defined Alt+M as the shortcut.
Here's how I used JS Move:
I made a room with a few windows, sofa, and coffee table, then brought in a rug and placed it in the corner of the room. I used JS Move to center the rug with respect to the coffee table. (Note that this example has edges turned off - this would also make the Move tool harder to use since edges aren't available to click on.)
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhQNKAHpngueThr6pEpCVvzldOdBllJCawMEaVb9hyphenhyphenmvbNhi22Pa5Dsbkbf5bSM05jmuRm5DIisOAS2Mj6bqXXgQG_wsFyKu8eLDLJZPxgQe3DMGHE9jbGBd4oL-kAP55uQ67sqogmx1sg/s400/JSMove1.png)
I selected the rug, then activated JS Move (Plugins / JS Move). For the move distance I entered 1 (for one inch) and pressed Enter.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXEg67dLmQVthkwG_wnOS8c6HZoHz7pMDyMdoXjKRyJG4OPscyDvDBMe7yHlodg5gQd5WLh5oRXcGYW4watk0AlWx3lJ-hjIZC55ztNBzcjOuy3hgeqTA8gELc02WI41gbBQ91QHWg1gVt/s400/JSMove2.png)
The rest of the work is done by the arrow keys. I used the left key to move the rug to the left (left and right arrows move along the red axis). Pressing the Shift key increases the move distance by a factor of 10 (10" in my example), and pressing Ctrl or (Cmd on the Mac) reduces the distance to 10% (0.1" in my example). You can change the move distance by entering a new number.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiDT42svjjUTD7WmroRz1HfRiMp7D3AHxHEhnlo1KTBqvCKZQSBhN-HSTHtmlDmngjKJnPjhPwBhyphenhyphencpImXYixKUoVVZ-JJYQRn6NrMFyao354Plxxoo1gf88jN9aaxUv23IMUeYIDrjACdU/s400/JSMove3.png)
I then orbited around to a different view, and used the up and down arrows to move the rug further into the room (these keys move in the green direction).
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjE4HPAkb7hOJk83t9mr7ndLaYuySfVuShiUHE-1QEJuBisUAaqyVy5TWut_MM-rbGqqem74adf-zAm1gE5yrJ5i4xq_ow126lI4I5m1kcTJROCjKj8xMPIazx60OwqSlxJZb482mzokw1K/s400/JSMove4.png)
To move objects vertically (along the blue axis), use the Alt key. For example, I selected all three windows and used the Alt key to tweak the windows a bit down along the wall.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMrLsn783tNvqXk6pai0Em-JqrsZS7M1_LwfDlxU_UKSNnyATUVKWV-9LgdWyJ2h_-06nummCUWYo_GoU0AwGMWOmLIBbMrwtOLQvD13ZAlZb5eeBgsZOw6nU-n-dVFPkdohnoatcgJJLg/s400/JSMove5.png)
One thing that was pointed out by SketchUp Plugins Reviews: If you have multiple objects selected and use the Shift or Ctrl/Cmd modifier keys, you might get unexpected results related to relative distances between objects.
Give it a try!
Anyone can design anything in 3D! www.3dvinci.net