AlgoStudio not importing correctly class

Hi,

I'm beginner on development of EAs on protrader and I'm facing some issues.

I follow youtube channel of protrader Brasil to learn how to develop, but when I started a new code, some classes don't import correctly and the autocomplete not work.

I noticed there is a "using PTLRuntime.NETScript.indicator" class in the example that the Brazilian guys is using, but the I type "using PTLRuntime.NETScript" and add a dot to fill the rest of sentence, but not show anything to me.

So when I use indicator class on my code, not happen and MAMode doesn't exist to me, like the images below

How can I fix it?

Thanks