Yes, you can prevent tracks by the same artist from playing consecutively using Track/Artist Separation Playout Policies. To set this up, navigate to Manage > Playout Policies in PlayIt Live and click Add New. Select Track/Artist Separation Playout Policy from the options.

In the policy settings, configure the Artist separation time using the up and down arrows to specify the minimum time that must pass before an artist can be played again. You can set this in hours or minutes using the dropdown menu. For example, setting this to 1 hour ensures that at least 60 minutes will pass before any track by the same artist is played again. You can apply this policy to all tracks or limit it to specific track groups by checking the Apply to specific track groups checkbox, which is useful if you want different rules for songs versus jingles or other content types.