Conditional Comparison Column Exclusion

We need the ability to conditionally exclude columns from processing. For example, if columns 1 through 5 are APPLE, then exclude columns 6 through 10 in the comparison.

We would need to be able to use different versions of this exclusion in the same comparison.

My thought was new process statements which would be a PREFIX of CON (conditional) plus the existing NEXCLUDE and OEXCLUDE process statements, which I've used in the samples below, but I don't care what IBM would name the new process statements.

Like this:
CONNEXCLUDE 'APPLE',COLS 1:5,COLS 6:10
CONNEXCLUDE 'PEAR ',COLS 1:5,COLS 6:10
CONOEXCLUDE 'APPLE',COLS 1:5,COLS 6:10
CONOEXCLUDE 'PEAR ',COLS 1:5,COLS 6:10

The previous SYSIN would not process columns 6-10 if columns 1-5 = 'APPLE' or 'PEAR ' in the new or old datasets.

I tried to make it similar to the existing SYSIN conventions already in use, but if it makes it more clear then something like this could be used:

CONNEXCLUDE COLS 1:5='APPLE',COLS 6:10
CONNEXCLUDE COLS 1:5='PEAR ',COLS 6:10
CONOEXCLUDE COLS 1:5='APPLE',COLS 6:10
CONOEXCLUDE COLS 1:5='PEAR ',COLS 6:10

Alternatively, new optional keywords could be added to the existing NEXCLUDE and OEXCLUDE process statements.

NEXCLUDE COLS 6:10 IF COLS 1:5='APPLE'
NEXCLUDE COLS 6:10 IF COLS 1:5='PEAR '

Keeping in mind I need to be able to specify the process statement multiple times to conditionally exclude columns from comparison for multiple values.