How do i copy parts of one simulink model to another?

This question is somewhat basic but I have two Simulink models and want to make a new model with some content from each and am not sure how to do it. Any help would be appreciated. Thanks.

[MarkSHockey17]

i realized that i had 2 instances of matlab running so copy/paste did not work which is why... ugh!

[Guanyu Wang]

Ha! That's it! Saved my morning. Thanks!

[TUNAHAN YILMAZ]

mine too...

Answer 1

[Lucas McDonald]

Here is a quote from OP who answered their own question in the comments. Adding as answer because its now buried in the hidden comments.

"i realized that i had 2 instances of matlab running so copy/paste did not work which is why... ugh!"

I saw this and then launched the second simulink model from the same MATLAB instance - problem solved!

Answer 2

[Sonam Gupta]

This may answer your query:

https://in.mathworks.com/matlabcentral/answers/15247-copying-a-subsystem-from-one-model-to-another