filter options of a richtselect

how can I filter within a form a server-side call for options of a richtselect element. I have to filter the items that have a certain id.

For example project_id … “data / data_tag.php? Idprogetto = project_id”

{id: “id_tag”, editor: “richselect”, header: “Associate TAG”, vertical: true, options: “data / data_tag.php”, fillspace: 1},

thank you

Hello @lucianotrinca,
As a solution, you can filter directly in options: https://snippet.webix.com/wvpjsll9
Also, options can be loaded by Ajax: https://snippet.webix.com/8nmj66ey
Please check the documentation here