Basic question: how to edit?

I want to edit this routine to replace "Cache" with "IRIS" how do I do that in Intersystems Google Cloud environment?  The portal  System > Routines  doesn't seem to show much. 

RPMS>ZL %RCR ZP

DIRCR    ;SFISC/GFT-DELETE THIS LINE AND SAVE AS '%RCR'*** ;12:18 PM  20 Apr 1993 [ 04/02/2003   8:23 AM ]

         ;;22.0;VA FileMan;**1001**;APR 1, 2003

         ;;22.0;VA FileMan;;Mar 30, 1999

         ;THIS ROUTINE CONTAINS AN IHS MODIFICATION BY IHS/MFD

         ;Per VHA Directive 10-93-142, this routine should not be modified.

%RCR     ;GFT/SF

         ;

STORLIST ;

         ;----- BEGIN IHS MODIFICATION

         ;4 NEW LINES ARE ADDED.  ORIGINAL MODIFICATION BY IHS/MFD

         I $ZV["Cache" G IHS

         S %D="" F  S %D=$O(%RCR(%D)) Q:%D=""  ZNEW @%D

         S %E=%RCR K %RCR,%X,%Y D @%E Q

IHS      ;

         ;----- END IHS MODIFICATION

         D INIT

O        S %D=$O(%RCR(%D)) G CALL:%D=""

         I $D(@%D)#2 S @(%E_")="_%D) G O:$D(@%D)=1

         S %X=%D_"(" D %XY G O

         ;

CALL     S %E=%RCR K %RCR,%X,%Y D @%E

         S %E="^UTILITY(""%RCR"",$J,"_^UTILITY("%RCR",$J)_",%D",^($J)=^($J)-1,%D=0,%X=%E_","

G        S %D=$O(@(%E_")")) I %D="" K %D,%E,%X,%Y,^($J,^UTILITY("%RCR",$J)+1) Q

         I $D(^(%D))#2 S @%D=^(%D) G G:$D(^(%D))=1

         S %Y=%D_"(" D %XY G G

         ;

         ;

XY(%X,%Y) ;

%XY      ;

         N %A,%B,%Q,%Z

         S %A=$$R(%X),%Q=""""""

         I $P(%A,"(",2)]"",$E(%A,$L(%A))'="," S:$L($P(%A,"(",2),",")>1 %Q=$P(%A,",",$L(%A,",")),$P(%A,",",$L(%A,","

))="" S:%Q="""""" %Q=$P(%A,"(",2),$P(%A,"(",2)=""

         S %Z=%A_%Q_")",%B=$L(%A)+1

         F  S %Z=$Q(@%Z) Q:$P(%Z,%A)]""!(%Z="")  S @(%Y_$E(%Z,%B,255))=@%Z

         Q

R(%R)    ;

         N %C,%F,%G,%I,%R1,%R2

         S %R1=$P(%R,"(")_"(" I $E(%R1)="^" S %R2=$P($Q(@(%R1_""""")")),"(")_"(" S:$P(%R2,"(")]"" %R1=%R2

         S %R2=$P($E(%R,1,($L(%R)-($E(%R,$L(%R))=")"))),"(",2,99)

         S %C=$L(%R2,","),%F=1 F %I=1:1:%C S %G=$P(%R2,",",%F,%I) Q:%G=""  I ($L(%G,"(")=$L(%G,")")&($L(%G,"""")#2)

)!(($L(%G,"""")#2)&($E(%G)="""")&($E(%G,$L(%G))="""")) S %G=$$S(%G),$P(%R2,",",%F,%I)=%G,%F=%F+$L(%G,","),%I=%F-1

         Q %R1_%R2

S(%Z)    ;

         I $G(%Z)']"" Q ""

         I $E(%Z)'="""",$L(%Z,"E")=2,+$P(%Z,"E")=$P(%Z,"E"),+$P(%Z,"E",2)=$P(%Z,"E",2) Q +%Z

         I +%Z=%Z Q %Z

         I %Z="""""" Q ""

         I $E(%Z)'?1A,"%$+@"'[$E(%Z) Q %Z

         I "+$"[$E(%Z) X "S %Z="_%Z Q $$Q(%Z)

         I $D(@%Z) Q $$Q(@%Z)

         Q %Z

Q(%Z)    ;

         S %Z(%Z)="",%Z=$Q(%Z("")) Q $E(%Z,4,$L(%Z)-1)

         ;

INIT     I $D(^UTILITY("%RCR",$J))[0 S ^UTILITY("%RCR",$J)=0

         S ^($J)=^($J)+1,%D="%Z",%E="^UTILITY(""%RCR"",$J,"_^($J)_",%D",%Y=%E_","

         K ^($J,^($J))

         Q

OS       ;

         S $P(^%ZOSF("OS"),"^",2)=DITZS

         K DITZS S ZTREQ="@"

         Q