To There are 2 ways to change the currently active project, click the Switch Project icon in :
Click the name of the project on the left panel highlighted below:
...
...
...
or click the name of the project displayed by hovering over your user on the top right side
...
Once clicked, the following available projects list appears. Select the project of interest from the list and click Change.
...
3- You will be prompted to change project as this will close all opened tabs. Click Yes.
...
4- After changing the project, an empty page will appear where you click the location you would like to go to. Note how the current project has changed on the left panel as highlighted below. 
...
| Info |
|---|
TipAny assets you create on the project/version you selected, this asset will belong to this project/version only. |
...