[ACCEPTED]-How to enable duplicate tabs in Eclipse? (i.e. duplicate windows)-window
On the Window menu choose Editor, then Clone (since 4.4.x) or 2 New Editor (earlier versions). You can then drag the 1 title bar around to get side-by-side views.
Another way would be to split the code editor view twice
But this will only 8 be possible with Eclipse Luna 4.4 M4, as 7 detailed by Lars Vogel in "Split editor implemented in Eclipse M4 Luna", in 6 Bug 8009:
The split editor functionality has been 5 developed in Bug 378298, and will be available as 4 of Eclipse Luna M4. The Note & Newsworthy 3 of Eclipse Luna M4 will contain the announcement.
Current 2 shortcut for splitting is:
- Ctrl + _ for split horizontally, and
- Ctrl + { for split vertically.
Depending on your 1 keyboard layout:
- Andrew adds in the comments that you can need Ctrl + Shift .
- el-teedee mentions (also in the comments) that, when pressing CTRL+{ in my Javascript editor, it inserts
''.
To fix this, I need to press CTRL+ALTGR+{ (Linux Ubuntu French keyboard),
Yeah, just right-click on the editor tab 5 you want, and select "New Editor". It'll 4 create a new tab editing the same file. You 3 can then drag this new tab to the left or 2 right edge of the view to get them in a 1 "split screen" state. It's really very flexible.
Other answers explain how to open multiple 17 editors or split editor. If we are talking 16 about other tabs/views that are not editor, it 15 depends on the implementation.
TLDR: search for 14 pin toggle 
or create new view button/option 13 in view!
History view, Search view and other pinnable tabs - have 12 "Pin this XXX View" toggle:
If 11 you pin it it will keep the content and 10 new Search (or history show) will show in 9 new history view.
History view also has "Reuse Compare 8 Editor" option so compares can be opened 7 in same or separate tabs:
Markers view has option "New 6 Markers View":
This view can be named 5 and you can set custom filter for each view.
Similar 4 is "Terminal View" that has button to open new terminal 3 view:
Some tabs do not have any option to 2 be duplicated. Tested with Eclipse 2019-12 1 (4.14.0)
I figured it out. Right-click tab > New 1 Editor.
I faced similar problem, but not with the 7 main edit tabs: I wanted to have duplicate 6 tabs in additional view panel (exactly: two 5 junit views to compare different test runs).
In 4 my case the only possible way to achive 3 such thing was creating separate window: Window > New Window and 2 openning new view there.
p.s. I'm using 1 eclipse kepler 4.3.1.
For eclipse kepler , you can try right-click 1 > open-with > any other like text editor
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