Would please try the below mentioned steps to create a keyword set:
- In the Library module, do any of the following:
- To convert the Recent Keywords set into a saved keyword set, click the Keyword Set pop-up menu in the Keywording panel and choose Save Current Settings As New Preset. Type a name for the keyword set and click Create.
- To include specific keywords in a keyword set, make sure that a keyword set is chosen in the Keywording panel. Then, either choose Keyword Set > Edit Set in the Keywording panel or choose Metadata > Keyword Set > Edit. Type or overwrite keywords in the text boxes, and choose Save Current Settings As New Preset from the Preset menu. In the New Preset dialog box, type a name for the keyword set and click Create.
For more information check the below link:Adobe Photoshop Lightroom Help | Use keywords
Let us know if it helps:
I did that and each time it appears under another set instead of creating a set of its own.
I did that and each time it appears under another Keyword Set instead of creating a new set.