Now this is significant. Notice that John does not say 'I saw' or 'I was transferred into heaven' but he simply says 'I heard'. There is no change in setting.
Are you kidding. That is your argument. What a scholar you are.
Revelation 1:1 A revelation by Jesus Christ, which God gave him, to show his slaves the things that must shortly take place. And he sent forth his angel and presented [it] in signs through him to his slave John,
These were visions, a dream. John was neither literally seeing these in heaven or on earth at the time.
John goes on to say in verse 13 to say " And in response one of the elders said to me: “These who are dressed in the white robes, who are they and where did they come from?”" To use your terminology and reasoning, notice that John does not say 'I saw' or 'I was transferred into heaven'. By your reasoning, the elders must be on earth too, which is not what your religion teaches.