Cell Linking Option is Greyed out

Cristina10
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Hi!
I am trying to link multiple sheets into a master sheet and was exploring the option of cell linking. Was following all the instructions available online however the cell linking option is greyed out. I am using a Smartsheet Enterprise plan. Hope somebody is able to help.
Answers
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Which part exactly is grayed out? Are you able to provide some screenshots as well as the steps you are taking to create the cell links?