Clarification on Manage Overhead Accounting Rule

Hi - Need clarification on this task "Manage Accounting Overhead Rules". This task is mainly for absorbing the overhead cost into inventory valuation for Average or Actual cost whereas for standard costed items, only overhead absorption rules with the absorption type set to expense will be considered for cost processing. Hence if we design a overhead rule for std costed item (Say Misc Receipt is trx) then accounting entry always going to be:

On the same UI we have another tab "Standard Cost Overhead Absorption rules". What is its significance? If we set up Misc Receipt with absorbs overhead as yes, what should be system behavior? I did this set up of Overhead Rule as shown below and did not find any difference in accounting line type. Am i missing something ?