Start testing from specific activity

Hello, looking foward for changing my test from selelum-appium to katalon 100%, can we start testing mobile apps from spesific activities ? then other question, can we run appium server using katalon for start test from spesific katalon ?
run this script using custom keyword :

DesiredCapabilities caps = new DesiredCapabilities();

Capabilities cap = new Capabilities();

String[] Caps = cap.capabilitis();

caps.setCapability(“deviceName”, Caps[0]);

caps.setCapability(“platformName”, Caps[1]);

caps.setCapability(“platformVersion”, Caps[2]);

caps.setCapability(“appPackage”, Caps[3]);

caps.setCapability(“appActivity”, Caps[4]);

//Instantiate Appium Driver

try {

AppiumDriver driver = new AndroidDriver(new URL(“http://127.0.0.1:4723/wd/hub”), caps);

} catch (MalformedURLException e) {

System.out.println(e.getMessage());

}

please answer my question because i need it, thanks :smiley: