In TINA you can convert any schematic diagram into a subcircuit called a Macro. <br /> <br />Watch our tutorial video to see how to create a Macro in TINA. <br /> <br />Download the FREE trial demo of TINA Design Suite and get <br /> <br />1.One year free access to TINACloud (the cloud-based, multi-language, installation-free online version of TINA now running in your browser anywhere in the world.) <br />2.An immediate 20% discount from the offline version of TINA <br />3. Free license for your second computer, laptop etc. <br />Click the link: http://www.tina.com/demo.php to download the FREE trial demo of TINA