Maintain Multilevel List Formatting while Inserting Exception to Normal Numbering Scheme

I'm working on a document in Microsoft Word that utilizes a multilevel list. However, I've encountered a situation where I need to insert a list item with a decimal numbering format without disrupting the native formatting of the multilevel list.

Here's the issue: In my multilevel list, I have a particular entry where I need to change the normal formatting. Normally, the list goes "1)", "2)", "3)", "4)", etc. However, in this specific instance, I need the list to transition from "3)" directly to "3.5)" and then continue with "4)".

I understand that I can manually adjust the formatting, but this disrupts the native appearance of the multilevel list. Is there a way to insert a list item with a decimal numbering format while maintaining the native formatting of the multilevel list in Microsoft Word?

Any assistance or guidance on achieving this would be greatly appreciated. Thank you

In Microsoft Word, you can present add a list item with a decimal number to an existing multilevel list without affecting the formatting by performing the following steps :Add a list item with a decimal number to an existing multilevel list without affecting the formatting by performing the following steps :

Start a hierarchical list : To add a list item to a document, click in the desired location .of your document, click in the desired location .

Manual formatting a:Manual method:

To add an item to a list , place the cursor where you want it to appear after an existing item .
To add an item to the list, press the Enter key. The result should be a new item of the same level .must be identical in level to the new item .
Revise the sequence :

Enter the number manually .Enter the number manually . For example, if the item before it was "1", you could enter "1.1".
Insert an indentation or move it up or down the hierarchy , press Tab .
If necessary, disable automatic numbering :

From time to time Word may attempt to change the numbering on its own . Click the " Numbering" drop-down list in the "Paragraph" group on the Home tab to disable automatic numbering. to disable automatic numbering for this item if this happens.The "Paragraph" group on the Home tab to disable automatic numbering for this item, if this happens