I have a custom visualforce page to migrate to Lightning console. which I did by adding lightningStylesheets="true" flag and also checking Available for Lightning Experience, Lightning Communities, and the mobile app.

Problem that I am having is when I click on new button, a new page takes over the whole screen rather than just being a pop up in classic side.

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put on hold as unclear what you're asking by David Reed, battery.cord, Raul, glls, Pranay Jaiswal Feb 11 at 15:19

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  • can you tell me more about how you have designed the button? Have you override the new button or created a custom button? What does your vf page do? – sanket kumar Feb 11 at 14:46