Hi ​@Spandan98 ,

To achieve your goal, you will need to leverage Access Rights (AR). Here's a step-by-step guide:

1. Create an AR Metric

You can use the ACCESSRIGHTS function with the following formula:

ACCESSRIGHTS(true[ADD: User,Options] , 'Radio button T/F'[ADD: User])

2. Configuration for Read and Write Access

• Read Access: Apply TRUE for all users.
• Write Access: Configure a specific metric, 'Radio button T/F', dimensioned by your Options dimension. Use the formula:

IF(
    'Radio button selection'[REMOVE ANY: Options] = FALSE OR 
    ISBLANK('Radio button selection'[REMOVE ANY: Options]), 
    true[ADD: Options], 
    'Radio button selection'
)

3. Explanation of the Formula

This formula checks two conditions:

1. No option selected with a FALSE value:

   'Radio button selection'[REMOVE ANY: Options] = FALSE

2. No option selected or deselected (Blank value):

   ISBLANK('Radio button selection'[REMOVE ANY: Options])

    

If either of these conditions is TRUE, write access is allowed for all options :

the AR metric would be:
 

.Otherwise, write access is granted only for the selected option.

The AR metric would be:
 

4. Applying the AR Metric

Once configured, apply the AR metric in the Data Access Rights section.

5. Additional Resources

For more information on implementing AR, refer to:
Create an Access Rights Metrics and Rules

Hope this helps,
Issam