Welcome to the forum!
Let's see if this is close to what you want. With reference to my attached example workbook:
Duplicate your list of employees in rows below your current table. In the attached workbook this list starts at row-11.
Populate the following pattern detection formula into cell B11 and copy across and down:
Now create the following conditional formatting:
a) Select range B1:T5
b) Conditional formatting > New Rule > Use a formula to determine which cells to format
c) For the formula enter: =B11
d) Format as desired (I used yellow fill).
Now the start of the desired work pattern will be highlighted in your original table (A1:T5).
See the attached workbook which implements the above
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