How to freeze a dynamic selection of rows below header in PrimeNG data table - row

Question

I have managed to freeze header and columns but now need to freeze also a dynamic selection of rows that I want to display right below header.
Here is the current data table html. Please tell me how I can add to it.
<p-table [columns]="store.fields" [value]="playerSeasonStats" [scrollable]="true" [scrollHeight]="tableHeight" frozenWidth="240px">
<ng-template pTemplate="frozencolgroup" let-columns>
<colgroup>
<col style="width:160px">
<col style="width:80px">
</colgroup>
</ng-template>
<ng-template pTemplate="colgroup" let-columns>
<colgroup>
<col style="width:160px">
<col style="width:160px">
<col style="width:80px">
<col style="width:80px">
<col *ngFor="let col of columns" style="width:100px">
</colgroup>
</ng-template>
<ng-template pTemplate="frozenheader">
<tr>
<th style="height:83px" [pSortableColumn]="'player_name'">Name</th>
<th style="height:83px" [pSortableColumn]="'season'">Season</th>
</tr>
</ng-template>
<ng-template pTemplate="frozenbody" let-rowData>
<tr>
<td (click)="toggleAnalyzed(rowData?.player_instatid)">{{rowData['player_name']}}</td>
<td>{{rowData['season']}}</td>
</tr>
</ng-template>
<ng-template pTemplate="header" let-columns>
<tr>
<th [pSortableColumn]="'team_name'">Club</th>
<th [pSortableColumn]="'league_name'">League</th>
<th [pSortableColumn]="'primary_position'">Position</th>
<th [pSortableColumn]="'matches_count'">Matches count</th>
<th *ngFor="let col of columns" [pSortableColumn]="col">
{{capitalizeField(col)}}
</th>
</tr>
</ng-template>
<ng-template pTemplate="body" let-rowData let-columns="columns">
<tr>
<td>{{rowData['team_name']}}</td>
<td>{{rowData['league_name']}}</td>
<td>{{rowData['primary_position']}}</td>
<td>{{rowData['matches_count']}}</td>
<td *ngFor="let col of columns" [ngClass]="colorCondition(rowData, col)">
{{rowData[col]}}
</td>
</tr>
</ng-template>
</p-table>