Yes. From your settings, enter the maximum number of parallel uploads that you would like.

To change the number of survey uploads at a time, follow these steps.

1. Open PrecisionViewer and click Settings (Figure 1).

Figure 1: Clicking Settings

2. In Upload section, select Limit Parallel Uploads checkbox, enter an appropriate number and
     click Save 
(Figure 2). 

     You will be allowed to upload the set number of surveys simultaneously.

Figure 2: Setting the number of parallel survey uploads