When in Schoology and creating a folder then creating an assignment, you unclick SYNC TO SIS. You can apparently Sync and Unsync daily depending on what you want/need published. Click here for image.

When in Schoology, click on your name in the upper right-hand corner. Then select settings, scroll to the bottom of the page to Other Options, click on the button next to Course Dashboard, and then press Save Settings. 

Login to PowerTeacher Pro. Click on PowerTeacher Pro link on the top left side then click on plus symbol in the upper right hand corner, which will drop down. Now select Email. In the upper right hand corner of the communication box, click on the cog, and select show filter. You will see a blue filter box appear.  Click on the arrow under To on the left side. Then click on the plus on the right side on the same line as basic filter.  Select type and contact type, you can select only parents with this filter.  Press apply and send your message or copy your emails. 

To search for a student by their first name, enter %FirstName.  This will bring up the list of first names.