Download MusexPress CMS and install it.
Please keep in mind that if you wanna use the new version, you need to update all of the MusexPress widgets in your Muse project (to the new version) to be sure that everything will work correctly on your site.
This new plugin replaces the Pages plugin for MusexPress. So, if you have the Pages plugin on your panel, you need to deactivate and delete it. To save your old works currently using this Plugin, you need to follow this documentation to move from the old Pages plugin to the new Boxes plugin. It’s very easy and requires no code skills.
Go to MuseGain.com to download the Boxes Plugin. You’ll find a file called “MusexPress-Boxes-1.0.zip”. Unzip it to get 2 different folders: Widget and Plugin.

The first step is to install the Boxes plugin on the WordPress admin panel. From the Plugins menu click on the “add new” button. Select the “boxes-plugin.zip” file, click on the “install now” button and then activate the plugin. You can now see a new section in you admin menu, called “Boxes”.

Install the Boxes Widgets
Jump back to the “MusexPress-Boxes-1.0.zip” folder we have downloaded before and open the Widget folder. Double click on the mulib file and here we are in Adobe Muse. In the Library panel you can find a folder called “MusexPress – Boxes”.
Insert the Website URL
Select the Boxes widget from the library panel and drag and drop it into the canvas. Enter your website URL in the widget menu. If your website is in a subfolder, remember not to add a final / to the URL.
Jump back to your admin panel, click on the Boxes menu and then go to “add new”. From this page you can add the text content you want to be displayed into your Muse project. You can insert the box title that will help you or your customer to identify the text box for any editing. As a sample, we call it “box 1”. Now click on the “screen option” button in the top right corner and check the slug box if it’s not already checked. Enter the text in the text box and then click on “publish”. You can add a “slug” name. If you don’t insert anything, it will automatically be the same as the page title. Go back to the Muse project. Open the Boxes widget menu and enter the Box slug. You’ll see that the widget will display the contents that you inserted on the text box in the admin panel. You can style the text as you wish directly from the page content section and you can change font characteristics (type, color and size) from the Adobe Muse text menu. As they’re dynamic contents, you can’t preview the page in the browser untill you publish it.

Once your website design is finished, click on the File menu and then “upload to FTP hosting”. We insert our FTP credentials and continue. Now we have to insert the site URL. Pay attention to the “folder on server section”. That’s a very important step to have MusexPress working properly. You need to insert here the same WordPress installation path as completed before (either in root folder or in subfolder) and add /mxp_theme. We’re ready to go to the next steps. In the Upload section select “All files” if you’re uploading MusexPress for the first time. Then you can choose “only modified files”. Click ok. You will see an FTP validation alert. Don’t worry about that. Click on Ignore and wait for the website upload.

Once the upload is completed, go to your WordPress admin panel.
Go to MusexPress menu and click in the pages converter. Select all the pages and click on the convert button.

With Boxes you can manage not only texts and images/photos but also a media gallery to create light box galleries, video/audio players and playlists. Let’ proceed to create a gallery. Go back to the admin panel and click on the Boxes menu. Click on the Add New button and enter the box title. Click on “Add media” and select the images you want to use for your gallery. Wait for their upload, then click on “create gallery” button in the top left-hand corner and finally click on “create a new gallery” in the bottom right-hand corner.

You can customize the gallery from the right-hand Gallery Settings menu. You can decide how many image columns you want, order the images (or check the random order) and select the image size. Then click on Insert Gallery and you’ll get a gallery preview in the pages box. You can easily edit or delete it just clicking on it and then on the icons that come out on the top. You can now publish the gallery and go back to your Muse project. Put a new Boxes widget in the project, enter the website URL and the page slug. You’ll automatically get the gallery you made. You can customize it directly from the widget menu in the Gallery section. You only need to upload it from the File menu- Upload to FTP Host. After upload, remember to convert your website pages into PHP from the MusexPress pages converter menu.