How to use position() in map

Summary

How to use position() in map

Content

Hi,

I have a requirement to use position() of an element in for-each of a map in ICS.

I mean

Eg: In Map I want to use something like this

            <xsl:for-each select="$readTimeEntryFile/nsmpr0:SyncReadFileResponse/nsmpr2:FileReadResponse/nsmpr3:timeEvents/nsmpr3:timeEvent[position()&gt;=$from and position()&lt;$from+500]">

However I dont see how to do it in ICS mapper UI.

While I can do the same in Jdeveloper ( importing the xsl ) , I have a need to use a variable ( $from) which is defined in the process flow in ICS.

So when I import the XSLT to ICS ( after making required changes to for-each condition as above in Jdeveloper) and run the integration , I get below error