Here's is a list of approaches to take if you or your developer want to configure osConcert yourself.
Language
First we must configure the text to suit our organization.
The best place to start is the main language file.
(All pages have an associated language file)
To edit language definitions you must have access to a notepad editor and access to the raw files at your server.
Open includes/languages/english.php
and other files includes/languages/english/
Now you can change any default language definitions and replace the files at your server.
For example
// categories box text in includes/boxes/categories.php
define('BOX_HEADING_CATEGORIES', 'Church Services');
or in english/featured_categories.php
define('HEADING_TITLE', 'Church Services');
Settings
There are a huge amount of settings that may not be needed.
For example a Church won't really be selling tickets but offering Free Reservations.
Most of the features you see enabled in osConcert can easily be disabled in the osConcert Administration.
Payment Options
osConcert is loaded with many payment options and order total configurations.
Once again all modules can be installed or uninstalled and all modules have an associated language file.
For purely FREE reservations here is a guide:
Images
Decide what images are suitable for your business.
For example each product can have an image for it's associated info page and checkout pages. The default is images/ticket_icon.png
You may want to replace that image.
Each Category and eTicket background images should be carefully selected and uploaded in the Administration. Admin>Products
Template
In the Administration there are some options for the default template
Admin>Shop Settings>Template
You may not want a Left Column, you may not want some infoboxes or there are other infoboxes available that are not useful for Theatres.
Also the "breadcrumb" can be disabled or even the header shopping cart can be removed completely.
Furthermore osConcert is styled with Bootstrap 5 (famous twitter template) https://getbootstrap.com/
That means all the CMS can be configured easily with Bootstrap code snippets...like this example:
https://www.osconcert.com/event/
You will find the examples from the template above in your osConcert Template 'theevent' templates/theevent/content/mainpage.php
Customer Registration
Decide what system of registration (if any)
The default Sign Up page 'osconcert/create_account.php' can be configured to your liking in Admin>Shop Settings>Advanced>Customers.
Some settings can HIDE the login or you can also switch to Purchase Without Account (PWA) settings.