How to control multiple "If Action Subsystem" blocks with one "if" block

I would like to control more than one subsystem using a single condition. My questions are as follows:

1. Is it possible to achieve this using an if block and If Action Subsystem?

2. Is there another method to achieve similar control?

Answer 1

[MathWorks Support Team]

As you have noted, controlling more than one subsystem with an if block and If Action Subsystem is not possible, as indicated by the error message: "Error: Port 1 of 'xxx/If' must directly or indirectly connect to one If Action Subsystem block."

However, you can use the Function-Call Subsystem block as an alternative method to achieve similar control. A simple example model is attached as shown below:

Example: