---
title: "Custom form fields"
description: "If you know that some fields will be reused in the signup steps, you can create their library and then simply select the desired field from the library when setting up the signup step."
url: https://help.eos.cz/en/articles/175-custom-form-fields
collection: "Signups"
updated: 2026-09-20
language: en
alternates: [cs, pl, sl, sk]
---

# Custom form fields

If you know that some fields will be reused in the signup steps, you can create their library and then simply select the desired field from the library when setting up the signup step.

## Module Location

You can access the module under **Management > Settings > Signups > Custom Form Fields.**

## How to Create a Field Library

-   Click on the button “**+**“.
    
-   Enter the **name** of the field (e.g., age, phone number, etc.).
    
-   **Input**: choose according to the format in which you want to collect the requested information from applicants:
    
    -   **text (single-line)** – text on one line.
        
    -   **textarea** – longer text allowing multiple lines.
        
    -   **whole number** – only whole numbers can be entered.
        
    -   **decimal number** – decimal numbers can be entered.
        
    -   **checkbox** – you can check or uncheck it.
        
    -   **select** – fill in multiple options for users to choose from. You can check **Allow selection of multiple options** for users.
        
    -   **date** – select a date with an option to **Allow time selection**: requiring both the date and exact time (hh:mm) to be filled.
        
    -   **email**
        
    -   **file** – upload/submit a file.
        
    -   **verified address** – select an address from the registry (available for CZ, coming soon for other countries).
        
    -   **phone number**
        
-   After clicking "**\+ Add more options**", you can specify the custom field further:
    
    -   **Common for all types**
        
        -   Displayed name: if you want to show a different field name to users than the one you set in the settings.
            
        -   Help text below the field: a help text to provide extra context to users filling it.
            
        -   Placeholder text: a hint value that appears in the background of empty fields.
            
        -   Suffix: useful for units (kg, cm, m, etc.) displayed after the field and its value.
            
        -   Internal note: only visible to platform admins in the custom form fields module.
            
    -   **Text (single-line)**
        
        -   Minimum and maximum text length: limit entered value by character count.
            
    -   **Text (multi-line)**
        
        -   Minimum and maximum text length: limit entered value by character count.
            
    -   **Number (whole)**
        
        -   Minimum and maximum value: limit the entered value.
            
    -   **Number (decimal)**
        
        -   Minimum and maximum value: limit the entered value.
            
        -   Step size for the counter.
            
    -   **Selection of values** – when checking the option **Allow selection of multiple options**
        
        -   Minimum number of selected options: – define the minimum number of options users must choose.
            
        -   Maximum number of selected options: – define the maximum number of options users can select.
            
    -   **Date**
        
        -   Max. possible date: limit the date selection from above.
            
        -   Min. possible date: limit the date selection from below.
            
-   By pressing the **OK** button, you save the custom field.
    

## How to Add a Created Field to an Signup

-   Click on the specific **Signup> Signup Steps**.
    
-   In a specific step, **Signups> Add a new field > Select From Library** – you will see all pre-prepared fields to choose from.
    

[

Signup settings and creating steps

After creating the application, it’s necessary to set its details and create individual steps that the applicants will fill out.

](https://help.eos.cz/en/articles/170.md)

## Managing Custom Fields

**Edit and Delet:** A custom form field can be edited or removed anytime if the user has the permissions. A deleted custom field will disappear from all signups it was assigned to, including all saved values!

## Permissions and Access

Managing custom form fields for applications requires permissions to the modules **Settings** and **Signups.**