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- Point remote control so all three TVs can see it and press Power button.
- If one TV doesn't turn on, press the power button on the under side of the TV. It is underneath the "Samsung" lettering at the bottom middle of the TV.

- Some sites (not all) have a Jabra Bluetooth speaker for playing the two songs.

- Open 3MDR software. (Program icon should be on the desktop).
- Click "Launch Application".
- You will see the Patient Info panel.

- Fill in the Patient Info panel:
- Select your site from the drop down menu. In the example below, "TEST - For testing purposes" is selected.
- ID # : Enter the patient's ID number - eg: if the participant ID code is TEST-P007, then the ID # is 7.
- Session # : Enter the treadmill session number - eg: if this is the first 3MDR treadmill session, Session # is 1.
- Study Code : Enter 3MDR.
- Organization : Enter your clinic name.
- Patient Initials and Therapist Initials : Enter the appropriate initials.
- Song 1 Name and Song 1 Length : Name and length (in minutes) for the song at the beginning of the treadmill session.
- Song 2 Name and Song 2 Length : Name and length (in minutes) for the song at the end of the treadmill session.

- Click the "Select Image in Session Folder" button and select any image file within the appropriate Images directory. For participant TEST-P007's first treadmill session, you would select: Desktop -> 3MDR Patients -> TEST-P007 -> Session 1 -> Images -> Any Image File.
- You must select an image file within the Images directory (any file, does not matter which one). It won't work if you select the Images directory itself.
- The software will load all image files in the directory. Load order is alphabetical based on filename. We recommend you rename the image files adding 1, 2, 3, etc. on the front of the filename to indicate the image order within the session.

- Click the "Select Data Folder" button and select the appropriate Data directory.  For participant TEST-P007's first treadmill session, you would select directory: Desktop -> 3MDR Patients -> TEST-P007 -> Session 1 -> Data .
- The Data directory you select must be empty. (See below for more details.)

- IMPORTANT: If you re-start the 3MDR software, you may need to create a new session directory and use that instead.
- The session's Data directory must be empty. To avoid accidentally overwriting existing data, the 3MDR software will not let you re-use a Data directory containing data files.
- For example, if you start the 3MDR Software, fill in the Patient Info, click "Start Session", exit the 3MDR Software for whatever reason, then re-start the 3MDR software, you cannot use the original session Data directory because the 3MDR software will have saved data files there.
- To check whether you need to create a new session directory, look in the original session's Data directory. If it is empty, you can use the original session directory. Otherwise, create a new session directory.
- To create a new session directory:
- Create a new directory named something like "Session 1b" (assuming you're doing treadmill session 1).
- Copy the Images directory from the original "Session 1" directory into the new "Session 1b" directory.
- Create an empty "Data" directory within the "Session 1b" directory.
- When you re-start the 3MDR software, select the Images and Data directories within the new "Session 1b" directory.

- If you want the 3MDR Software to automatically advance to the next image on each cycle, click the "Auto Advance Image" checkbox. If you do not check this box, you must manually select the next image for each cycle using the Images panel in the upper-right of the 3MDR screen.

Blue Sky Scene
- Clinician view of 3MDR software interface when session first starts is shown below. Starts in the Blue Sky Scene.
- Patient sees a similar view without the user interface components.

General Interface Notes and Quirks
- The 3MDR software is based on a 3D video game engine (Unity engine). It has some quirks in the user interface.
- Grey rectangle buttons : Some of these turn various interface panels on and off including Walking, EMDR, Labels, Images, Notes & SUD.
- Save & Quit button : Saves the output data and quits the program.
- Emergency Stop button : Stops the visual display
- Blue Sky Scene button : Goes from the red corridor scene back to the blue sky scene
- Corridor Scene button : Goes from the starting blue sky scene to the corridor scene with image display

If an Interface Panel Disappears
- Click on the appropriate grey button at the bottom to bring it back.
- Certain panels disappear automatically (eg: SUD Score Panel) because this fits the workflow of the American clinical site that created the software. (A future version will change this behaviour.)

Walking Panel
- Adjust slider to set walking speed.
- Click Walk button to start the display moving forward.
- You must also start the treadmill and manually adjust the treadmill speed until the patient feels it matches the visual display.

Corridor Scene
- From Blue Sky Scene, click "Corridor Scene" button in lower right of screen to switch to the Corridor Scene.

- "3MDR Patients" directory on the Desktop holds the images and 3MDR software output data for each patient.
- Detailed setup instructions are included below.

Setup for "3MDR Patients" Directory

- Create a new directory on the Desktop called "3MDR Patients".
- For each patient, create a new directory within "3MDR Patients". Each patient's directory name will be their participant ID code. (Details of participant ID codes are on the Research page.)
- The example below shows a "3MDR Patients" directory containing directories for patients TEST-P001 through TEST-P006. You would use Participant IDs with your own clinic's site code, rather than TEST.

- Within each patient's directory, create the following directories:
All Images, Session 1, Session 2, Session 3, Session 4, Session 5, Session 6

- All images for the patient go in the "All Images" directory. You should rename those image files if necessary to have easily understood filenames. Also, you should add a number at the end of the filename, before the file extension, indicating the image's severity on a visual activation scale from 1 to 10.

- Within each session directory, create two directories: Images, Data .
- Copy the images for a given session into that session's Images directory. Also, rename the copied image files to include a number at the beginning of the filename indicating the image's order during the session (1, 2, 3, etc.). (The 3MDR software sorts images by filename.)

Data folder must be empty
- To avoid overwriting old data, the 3MDR software requires the Data folder to be empty.