• Which the release of FS2020 we see an explosition of activity on the forun and of course we are very happy to see this. But having all questions about FS2020 in one forum becomes a bit messy. So therefore we would like to ask you all to use the following guidelines when posting your questions:

    • Tag FS2020 specific questions with the MSFS2020 tag.
    • Questions about making 3D assets can be posted in the 3D asset design forum. Either post them in the subforum of the modelling tool you use or in the general forum if they are general.
    • Questions about aircraft design can be posted in the Aircraft design forum
    • Questions about airport design can be posted in the FS2020 airport design forum. Once airport development tools have been updated for FS2020 you can post tool speciifc questions in the subforums of those tools as well of course.
    • Questions about terrain design can be posted in the FS2020 terrain design forum.
    • Questions about SimConnect can be posted in the SimConnect forum.

    Any other question that is not specific to an aspect of development or tool can be posted in the General chat forum.

    By following these guidelines we make sure that the forums remain easy to read for everybody and also that the right people can find your post to answer it.

FSX Stacking Objects with ADE in FSX


I am not a designer and am an old man who’s hands shakes. I have read the ADE manual, but there was no information on how to stack objects or even tell what the vertical dimension is for an object.

I am trying to stack buildings on top of each other to create a multi-story office building, but I can’t see how high to set the altitudes for the additional building segments. I think it would be easy if I could find how high was the vertical dimension of the building, but I can’t find that parameter. Where is it please?
Similarly, I intend to place a strobe effect at the upper corner of the building. I have mushed along playing hi-lo with the “Altitude” box in the “Edit Object” dialog, but was hoping for a more direct method.

Lastly, is there a “nudge” key combo or command to fine tune object placement?

Hi Calvin:

Sorry it has taken so long for "someone" to reply; most of us are very busy struggling to adapt to MSFS SDK methods now. :banghead:

Certainly there is a lot of fun still to be had in FS9 and FSX or P3D (even though Lockheed Martin says its "Academic" only :laughing:).

I would recommend referring to this set of data and thumbnails of FSX default scenery library objects (original is off-line now):


Download / extract this ZIP to reconstitute an install of the web pages for the above cited FSX default scenery library objects:


Some of the other software for FSX by Lamont Clark (aka "LC0277") may also be of interest to you ...at this archive page:


It may work OK to use ADE for object placement with its limited "Bounding Box" base sizes for some purposes.

If you refer to the X, Y, size of the base length / width, and the Z size of the height (all in Meters) for the "Bounding Box" that surrounds a 3D model as stated in Lamont Clark's index pages extracted from the linked ZIP above, you may achieve your goal.

Be aware that "Bounding Boxes" are not always precisely the size of 3D object exterior surfaces; they are 'close' ...but larger.

Personally I would instead do this using Flight1's Instant Scenery 3 (aka "IS3"). :idea:


In Instant Scenery, one can manipulate the 3D scenery objects with the Mouse or the Joystick, type in Altitude / Elevation as AMSL or AGL, display labels over objects to find out what their names are, and what scenery library files they are in etc..

Regarding challenges of maintaining a steady control of the 3D object when placing it via ADE GUI or IS3 if one has a tremor:

When connected to the user aircraft in FSX (ADE requires FSUIPC installed), set the FSX Simulation Rate to the slowest setting and position the user aircraft in Slew mode with the Numeric Keypad.

If using the Mouse to position the object via ADE GUI rather than via the user aircraft, instead of a desktop or other glossy smooth surface, you could try a coarse fabric woven surface MousePad with a Mouse that is small enough that your fingers can reach over its sides to contact / grip the MousePad surface.

Then ones Mouse movements may be moreso by the fingers and palm of the hand rather than by the wrist or forearm.

IIRC, when hand control is the site of greater difficulty rather than the wrist or forearm, IS3 can be switched from "Attach Object to Mouse cursor" mode into "Attach Object to user aircraft" mode, so that 3D object movement can be achieved by the limb using ex: a joystick type game controller.

Alternatively, one can set the FSX Simulation Rate to the slowest setting and position the user aircraft in Slew mode with the Numeric Keypad.

You may also be interested in using Don Grovestine's SlewMaster utility:


"Four slew speeds are available:

Fast 100' / 30m per click
Medium 10' / 3m
Slow 1' / 30cm
Nudge 0.1' / 3cm"

Another such "Slew" utility which has numerous features that I used starting back in FS9 days:


Yet another "Slew" utility for FSX:

< Of incidental note for MSFS users reading this thread ...another fascinating "Slew" utility with 'other' features: >


Thanks for sharing what you have here in prior years, and I hope this helps with your current / continued project. :)

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