This is the output of the URL data which actually includes the line level data of the record.

<nsResponse>

<record recordType="quantitypricingschedule" id="91" perm="4" fields="_eml_nkey_,_multibtnstate_,selectedtab,nsapiPI,nsapiSR,nsapiVF,nsapiFC,nsapiPS,nsapiVI,nsapiVD,nsapiPD,nsapiVL,nsapiRC,nsapiLI,nsapiLC,nsapiCT,nsbrowserenv,type,id,whence,customwhence,entryformquerystring,_csrf,name,vendor,basediscount,unitstype,unit,usemarginalrates,origmarginalrates,overallquantitypricingtype,origquantitypricingtype,updateitemattributes,isinactive">

<_csrf>0</_csrf>

<_eml_nkey_>0</_eml_nkey_>

<basediscount>0.0%</basediscount>

<entryformquerystring>vendor=729&id=91&xml=t</entryformquerystring>

<id>91</id>

<isinactive>F</isinactive>

<name>TEST

</name>

<nsapiCT>1587739764591</nsapiCT>

<origmarginalrates>F</origmarginalrates>

<type>quantitypricingschedule</type>

<unit>1</unit>

<unitstype>1</unitstype>

<usemarginalrates>F</usemarginalrates>

<vendor>729</vendor>

<machine name="leveledit" type="edit" fields="levelcount,leveldiscount">

<line>

<levelcount>1</levelcount>

<leveldiscount>-11.5385%</leveldiscount>

</line>

<line>

<levelcount>2</levelcount>

<leveldiscount>-18.7063%</leveldiscount>

</line>

<line>

<levelcount>3</levelcount>

<leveldiscount>-27.4476%</leveldiscount>

</line>

<line>

<levelcount>4</levelcount>

<leveldiscount>-30.4196%</leveldiscount>

</line>

</machine>

</record>

</nsResponse>

Not possible. enhancement has been created with NS