Once we modified OOB Desktop requisition to Power App, Presentation is as below:
<?xml version="1.0" encoding="UTF-8"?>
<presentation id="mymr" ismobile="false" mboname="MR" resultstableid="results_showlist" version="6.0.0">
<page id="mainrec" scroll="false">
<include controltoclone="pageHeader" id="INCLUDE-pageHeader"/>
<clientarea id="clientarea">
<tabgroup id="maintabs" style="form">
<tab default="true" id="results" label="List" type="list">
<menubar event="search" id="actiontoolbar1" sourcemethod="getAppSearchOptions"/>
<table id="results_showlist" inputmode="readonly" label="Requisitions" mboname="MR" selectmode="multiple">
<tablebody displayrowsperpage="20" filterable="true" filterexpanded="true" id="results_showlist_tablebody">
<tablecol dataattribute="MRNUM" filterable="false" id="results_showlist_column_select" mxevent="toggleselectrow" mxevent_desc="Select Row {0}" sortable="false" type="event"/>
<tablecol dataattribute="MRNUM" id="results_showlist_column_link" mxevent="selectrecord" mxevent_desc="Go To %1" type="link" usefieldsizegroup="false"/>
<tablecol dataattribute="DESCRIPTION" id="results_showlist_column3"/>
<tablecol dataattribute="SITEID" id="results_showlist_column1"/>
<tablecol dataattribute="REQUESTEDBY"
