When working on your revew, it may be useful to split the review/screen, for example, to compare text between different sections. To do this, open a browser window and open the review in RevMan Web, then repeat this in another browser window. Position the two windows on your screen so that you can see the different sections of your review.
You can install browser extensions which will automatically split windows into a layout of your choice (horizontal or vertical split). Extensions are available in the Chrome Web Store.
Before you use any plug-ins, remember to read the terms and conditions.