This is possible, however it is not possible to use a filter in the URL — the filter must be used in the following way:
<winstrom version="1.0">
<faktura-vydana filter="id between 490 492">
<varSym>11111111111</varSym>
</faktura-vydana>
</winstrom>
Unfortunately, document line items cannot be edited this way. You must first identify the document using the ID element and then also the ID of the line item.