The method I would use to produce 3 sections of the timeline is as follows:
1) Set the In and Out points (those yellow flanges on either side of the blue head of the timeline pointer) for the first section.
2) Click the Copy button.
3) Save current Project A if you haven't already done so.
4) File > New Workspace.
5) Click the Paste button.
6) Save As Project B (That's the first section).
7) Open Project A.
Set the In and Out points for the next section.
9) Click the Copy button.
10) File > New Workspace.
11) Click the Paste button.
12) Save as Project C (That's the second section).
13) Open Project A.
14) Set the In and Out points.
15) Click the Copy button.
16) File > New Workspace.
17) Click the Paste button.
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Save as Project D (That's the third section).
Now batch produce the three projects:
19) File > Batch Produce.
20) Click the Add (plus sign) button
21) Select Project B.
22) Click the Edit (Pencil) button and set up the produce format. When done, click the OK button.
23) Click the Add (plus sign) button
24) Select Project C and D.
25) Click the Start button.
If you get an error message, do not click the OK button. You can wait for all the other productions to finish or fail, and then click OK. If you click the OK button, then all remaining productions will be aborted.
If you want to remember the last in and out points in the main project (Project A), you can set timeline markers instead of changing to the chapter room and setting chapter markers. To set a timeline marker, right-click on the blue head of the timeline pointer, and select Add Timeline Marker. You'll have to save the current project before doing File > New Workspace so that the timeline markers can be saved.
Premiere Elements does not have a provision for batch production.
Gateway DX4380, AMD A8-5500 Quad Core 3.2GHz with ATI Radeon HD 7560D; 16GB RAM; 1 TB SATA 7200 RPM; Windows 8 Pro 64-bit; PDR11, PDVD12.