In the template editor, you have three levels of settings :
1. The global settings of the template
Accessible directly from the "Settings" window in the "Template" tab.
2. Modify, duplicate or delete a line in the template
In the option bar of a row, you can access the following functions:
"Select": to select the line and save blocks in your library
"Customize": to access the line and modify its parameters
"Duplicate": to duplicate the line identically
"Delete": to delete the line and its contents
Here's how to access the options available for a line :
Move your cursor outside the newsletter
Click on the line (delimited by a blue zone).
Choose from the options that have just appeared in the bar
3. template block parameters
In the option bar of a block, you can access the following functions:
"Select": to select the block and create an article
"Customize": to access the block modify its parameters
Here's how to access the options available for a block :
Move your cursor over the block
Click on the block (delimited by a purple area).
Choose between the two options that just appeared in the bar