The second column

With the parameter col2 the information box is expanded to a table of one row and two columns; the left column contains the information box,
right of it the second column can contain anything else - one or more images with {{F}} or [[File: .. ]], source code, another table.
Depending on the size of the second row, with wid2 the width percentage of it should be specified.

Examples

DescriptionInform description of the image Date 15 May 2022 Source Own work Author Example Permission (Reusing this file) Public domainPublic domainfalsefalse I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

France

DescriptionInform description of the image Date 15 May 2022 Source Own work Author Example Permission (Reusing this file) Public domainPublic domainfalsefalse I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. Other versions pictures can be shown also right of the box Camera location 48° 51′ 34.4″ N, 2° 20′ 32.9″ E  View all coordinates using: OpenStreetMap

DescriptionInform description of the image Date 15 May 2022 Source Own work Author Example Permission (Reusing this file) Public domainPublic domainfalsefalse This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.

Source <?xml version="1.0"?> <- http://www.inkscape.org -> <svg xmlns="http://www.w3.org/2000/svg" version="1.0" width="160" height=180"> <circle cx="80" cy="80" r="36"/> </svg>

DescriptionInform description of the image Date 4 September 2022 Source Own work Author Example Permission (Reusing this file) Public domainPublic domainfalsefalse This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.

Table1 line 1: row_1 row_2 line 2: row_1 row_2 A second table line 1: row_1 row_2 line 2: row_1 row_2 line 3: row_1 row_2 line 4: row_1 row_2

Upload with prefilled form

Into your commons.js you may copy from the code

var ns = mw.config.get('wgNamespaceNumber'),
	ul = mw.config.get('wgUserLanguage'),
	pn = mw.config.get('wgPageName'),
	un = mw.config.get('wgUserName'),
	dt = new Date();
	fd = dt.getFullYear()+'-'+String(dt.getMonth()+1).padStart(2,'0')+'-'+String(dt.getDate()).padStart(2,'0');	// formatted date

$.when(mw.loader.using('mediawiki.util'), $.ready).done(function () 
{	"use strict";

//    ..... other utilities 

	// Insert a personalized text-template into the Special:Upload edit box.
	// input form, prefilled for uploading own work on current date, {{PD-self}} 
	if (pn === 'Special:Upload' && /&uselang=([^&]*)ownwork/.test(location.search)) 
	{	setTimeout(function () 
		{	$('#wpUploadDescription').val
			(	'=={{int:filedesc}}==\n\{{Inform\n' +
				'| desc = \n' +			// {{F|F}}
			//	'| dese = \n' +			// {{en|…}}
				'| date = ' + fd + '\n' +	// yyyy-mm-dd
				'| sour = \n' +			// {{own based|…}}
				'| auth = ' + un + '\n' +	// mw.config.get('wgUserName')
				'| imag = \n}}\n'		// igen parms
			//	   vers; fiel; perm; oloc;  (when params are required)
			);
		}, 100);
	} else 
	{ // If not on Special:Upload change the Upload-link.
		$('#n-uploadbtn').find('a').attr('href', '//commons.wikimedia.org/w/index.php?title=Special:Upload&uselang=' +
			((ul === 'en') ? '' : ul) + 'ownwork&uploadformstyle=basic');
	}
    
//    ..... more utilities 

}); // end mw.util

You may customize the code for your special needs.