1. Make sure to get all your tabs set up the way that you want them to open

2. Then click the three vertical dots in the top right corner of your browser

3. Click on settings 


3.  In the On Startup section, select Open a specific page or set of pages. Then click Use current pages 

4. All current tabs open, except for the Settings tab, are automatically added

5. The next time you open Chrome your selected web pages will automatically open on separate tabs.

6. If at a later time you need to add more tabs, go back to step 1 and repeat.