The Inspector panel provides great opportunities for customizing the block. You can hide/show the Inspector panel by clicking on the button with the gear icon, top right. Or using hotkeys ⌘+⇧ for Mac, and Ctrl+⇧ for Windows and Linux.
Instagram URL
In this form, you can change the content displayed in the block. Use the @, #, ^ characters to specify a username, tag, or location ID. Or just copy the Instagram link

Instagram feed option (Optional)
In this drop-down list, you can choose the feed options to render: Top Posts or Most Recent Posts
Data processing method
Data processing method appear in version appeared only in Inster ver.1.1.0
This setting controls the mode of receiving and processing data from Instagram.

The Plain method allows you to request an Instagram directly from your site without additional settings. However, Instagram uses a complex mechanism to block such requests, and after a while, your site may be blocked.
The Proxy sends a request through the proxy server. In order to use this method, you need to get a username and password from proxy servers.
To specify the data of your proxy servers you need to open the file /wp-content/plugins/inster-gutenberg/inster-api/proxy.php
, and edit these lines of code:

Please note that some lines are optional. However, you must specify the username and password, as well as the address of the proxy server.
There are many companies providing proxy server services, for example, Luminati
For users who bought the plugin and activated it, there is an additional mode Option. This mode is slower than the previous ones but does not require additional settings.
Update entries on every page load/refresh
This option controls the updating of posts from the frontend.
Update interval
This setting controls the update interval for the list of posts and works only if the previous checkbox is enabled.
The minimum interval is 30 seconds – the maximum 10 minutes. If 0, the updates will be only after reloading the page.
Clickable links in the editor
If this option is enabled, clicking on the link will take you to the Instagram post page. If disabled, nothing will happen after the click.
Placed in one column on mobile
This setting controls the display of the grid on mobile devices:
- No: Do not control the display on mobile devices
- Mobile: Rebuild the grid in one column only when viewing a page on a mobile phone only.
- +Tablets: Rebuild the grid in one column when viewing a page on a mobile phone or tablet.
Reduce the number of columns if the column is less…
This setting controls the responsiveness of the block. If the width of one post is less than the number specified in this form, the number of columns in the grid will be reduced. The number of columns will never be less than 1. To disable this option, specify 0 as the value.
Block description
This setting will add a text description at the bottom of the box. You can edit the description as plain text right on the page.

In the options, you can control the alignment of the description relative to the block, as well as change the size or style of the text.

Open links in a new tab
This setting controls which tab to open links in a new or current.
Other block settings panel: