I see no problem on this page… what is exact the problem?
( are you using the snippets
http://snippets.wikidot.com/code:newpage-button
or
http://snippets.wikidot.com/code:newpage or the standard newpage module?
Do you want to set the (standardized) tags in ONE go?

or should they be put afterwards in a second step?

There is no "source" button anywhere to see the content…

1. You can use the google translate button left side menu - select french/francais and this should work..

2. parent=parentpagename ( predefined) will work, but I would insert as the tags= content a standard-tag which is later be easy to test like "_unsetfilename"

[[include :snippets:newpage-button
|mode=manual
|name=filename
|title=myfile
|tags=_unsetfilename
]]

Later you can insert into the "filename:_template" page at a standard position INSIDE the iftags test the button set-tags to change the tags to the pagename in a second - MANUAL step on the specific page itself!.

[[iftags +_unsetfilename]]
[[button set-tags-_unsetfilename** +_%%fullname%% text="Change tags to Pagename:(_%%fullname%%)"]]
[[/iftags]]

This will change your age-tags to the pagename anyway
see also the official documentation!
here copied:

Iftags

Tags are kind of special labels for a page, manually added in by editors by clicking on the tags link at the page options buttons on bottom of a page. Every tag can be max 64 characters long, tags are "space" separated and there is no limit of tags per page. Tags are very useful to label pages and then it's easy to create Tag Cloud, which allow to find interesting pages or topics much faster.

Special tags start with an underline: they are not automatically shown in tag clouds, but they can be used as special limitations in [[iftag]] conditions. Tags can be used in ListPages Module with generic conditions ( +, - ) too.

Iftag is a special condition question. You can use it on every page to "react" on tags and set up on the particular page used .

Syntax:

[[iftags +tag1 -tag2 tag3]] ... [[/iftags]]

• + before a tagname means - this tag must exist, (tag without a modifier works in a same way)
• - before a tagname means - this tag must not exist.

Example:

[[iftags +science]]
This page is labeled as: science.

Click here to view more science articles >
[[/iftags]]

[[iftags +bug -fixed]]
This is a bug, but it's not fixed yet.
[[/iftags]]

Button for tag update

You can use [[button set-tags <tag_alterations> text="<button_text>"]] to change page tags easily.

<tag_alterations> is one or more of the following (separated by space):

• +tag — will add a tag to the page if not already present
• -tag — will remove a tag from the page if present
• -* — will remove all the visible tags from the page (those not starting from "_")
• -_* — will remove all the hidden tags from the page (those starting from "_")

The action will happen when user clicks on the button and has permissions to edit the page. The page will reload afterwards (this is useful if you have some iftags constructions on the page).

Any tag removal will happen before tag addition.

Examples:

Class and style attributes work like for standalone buttons for page actions.

ok, i tested is not good

ex: sc_persia

is not working (fix set-tags-)

[[iftags +_unsetfilename]]
[[button set-tags -_unsetfilename** +%%title%% text="Change tags (%%title%%)"]]
[[/iftags]]

http://community.wikidot.com/blog:new:set-tags-button-available

Search the first character for %%title%% in category filename, create to tags
see list %%parent_fullname%% map:*

filename = sc_persia
tags = p
parent= map:persia

create filename:sc-persia

Correct:
[[iftags -_%%title%%]]
|| ##red|please - update the missing title tag by clicking this button here!##||
[[button set-tags +_%%title%% text="Change tags (_%%title%%)"]]
[[/iftags]]

Edit:
Or better:

A newpagebutton per every first letter with fixed
tags=firstletter of … and fixed
parent=map:persia

and inside the filename:_template page the iftags as above ( without +P of course than)

These are not "tags" (or parent-pages) anymore, but dataform fields.
Now I inderstand what is your wish!
Yes, of course - you can build select type dataform fields ( =pagepath) as i did it on the genealogy-template wiki with countries, towns, year, month, family-names,a.s.o… I had changed the CSS of these pagepath fields to prevent the create-new at the secent level - only to have one level of pagepath fields..

(http://genealogy-template.wikidot.com/ ) - test the creation/change of a person and you will detect tzhat there are a lot of selectable data existent.
(which can be used in ListPages like tags or parent fields (= linked_to)…

Have a look in the Control reports (http://genealogy-template.wikidot.com/control-report) of this wiki and especially on one of the persons in http://genealogy-template.wikidot.com/control-report#toc6 - Last-names - try to change them and have a look on th selectable pagepath fields..

Now I understand what is your wish!

Thanks :)

Je vais voir avec l'administrateur du wiki.