How can i change the size from the Emulator?,
because I have a high resolution screen, it makes my emulator too small and I find it difficult to read
Which operating system and which emulator version are you using?
The GenyMotion Free emulator lets you download different virtual device models.
download file MIT_App_Inventor_Tools_2.3.0_win_setup.exe
My screen resulotion 2560x1440
Yes, so the older version doesn't support window resizing. If you're willing to beta test the newer version, it can be resized and the contents resize accordingly.