Schematics tab > Devices group > 
Connectors menu > Linking
With this function, you can draw terminal block linking in the drawing i.e. link the desired number of terminal blocks into a chain.
Do the following:
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Indicate the first terminal block.
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Indicate the following terminal blocks i.e. all those you want to link to each other.
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End the function by pressing Enter or by right-clicking. This joins the connection points with a line.