Is there a oscilloscope plug in for audacity

I What To Have A Ocilloscope Plug In So i Dont Neet Do Keep Going The Diffrant Apps

You can get close with Audacity transport options.

Transport > Transport Options > Continuous scrolling.

That will move the cursor in the timeline from left to right drawing the waves as it goes until it reaches the middle. Then the cursor gets stuck and the waveforms march right-to left behind it. That may be enough for you.

Koz

Audacity supports most VST and VST3 plugins. You may want to just google that.