matteocontrini try move post extension 
FriendsOfFlarum Split, separates posts to a new discussion
Hari I use it but it takes too much effort to move many posts. Split is easier/faster to use
- Edited
matteocontrini actually, during the planning* of that extension, we thought of this issue and a select feature on the post area will be the right solution for it but it was not implemented SychO9/flarum-move-posts2 author has done a lot of work more than promised so I did not ask him for more. if possible could you submit a PR this feature already exists in the split extension you can copy the same code (i am not a dev) .. i feel shame to ask for a PR 
but it makes the move post extension the best.
If there’s an easier way to select multiple posts to move, then the move extension will be the bomb! It’s already very good.
6 months later
- Edited
I recently installed this extension (next to the move extension) and I used it to split a discussion and now there are new posts in the original discussion but it's shown as read. This is a bug. When splitting a discussion, the number of read posts should be decreased, by the number of posts that are extracted from it.
I'm not sure if the move extensions is suffering from the same bug but I think it's OK, so it seems like I will uninstall this and just use the move extension in future.
a year later
1.1.1
- Fixes for core PR; add cancel split button by @davwheat in FriendsOfFlarum/split47
- chore: enable phpstan, bump js deps by @IanM in FriendsOfFlarum/split57
I've recently reinstalled this extension because I've needed an easier way to move a lot of posts. I've completely forgotten that this extension has a serious bug which is the original discussion is marked as read even when there are new posts in it. I uninstalled it this morning. Is that bug fixed in 1.1.1?
CyberGene unfortunately not. Would you mind creating an issue for me please, I'll take a look when I can 
FriendsOfFlarum/split
Is it possible to split like 10k posts to a new discussion?
Whenever I try to "split from here", the "split to here" seems to be 7-8 posts away at max.
CyberGene original discussion is marked as read
Doesn't sound that good. Although I think in my case it wouldn't matter, because the old part would be locked after the split.
3 months later
- Edited
Tag changing modal doesn't disappear when I split post from the original one to under the new discussion. I don't know it's happening because of FoF Split but I wanted to report it.
P.S. It's not even closing. I need to refresh the page.
tolgaaaltas Can you please share the output of php flarum info ?
davetodave178 Sure.
Flarum core: 1.8.5
PHP version: 8.0.26
MySQL version: 8.0.31-cll-lve
Loaded extensions: Core, date, libxml, openssl, pcre, sqlite3, zlib, bz2, calendar, ctype, curl, hash, filter, ftp, gettext, gmp, SPL, iconv, json, pcntl, readline, Reflection, session, standard, shmop, SimpleXML, mbstring, tokenizer, xml, i360, bcmath, dom, fileinfo, gd, igbinary, imagick, imap, intl, exif, mcrypt, mysqlnd, mysqli, PDO, pdo_mysql, pdo_sqlite, Phar, posix, soap, sockets, xmlreader, xmlwriter, xsl, zip, Zend OPcache
+------------------------------------+---------+--------+
| Flarum Extensions | | |
+------------------------------------+---------+--------+
| ID | Version | Commit |
+------------------------------------+---------+--------+
| flarum-tags | v1.8.0 | |
| flarum-mentions | v1.8.3 | |
| flarum-subscriptions | v1.8.0 | |
| fof-sitemap | 2.2.1 | |
| fof-impersonate | 1.1.1 | |
| flamarkt-backoffice | 0.1.3 | |
| fof-follow-tags | 1.2.2 | |
| flarum-markdown | v1.8.0 | |
| webbinaro-calendar | 1.7.0 | |
| v17development-user-badges | v1.1.0 | |
| v17development-seo | v1.8.0 | |
| tohsakarat-tags-filter | v1.0.5 | |
| sycho-private-facade | v0.1.16 | |
| nearata-internal-links-noreload | v2.2.0 | |
| ianm-boring-avatars | 1.0.0 | |
| ganuonglachanh-search | 0.5.2 | |
| fof-upload | 1.5.4 | |
| fof-split | 1.1.1 | |
| fof-pretty-mail | 1.1.2 | |
| fof-polls | 2.1.2 | |
| fof-moderator-notes | 1.2.2 | |
| fof-merge-discussions | 1.4.1 | |
| fof-links | 1.2.2 | |
| fof-linguist | 1.1.2 | |
| fof-formatting | 1.0.3 | |
| fof-default-user-preferences | 1.2.1 | |
| fof-best-answer | 1.4.1 | |
| flarum-suspend | v1.8.1 | |
| flarum-sticky | v1.8.0 | |
| flarum-pusher | v1.8.0 | |
| flarum-nicknames | v1.8.0 | |
| flarum-lock | v1.8.0 | |
| flarum-lang-turkish | 1.25.0 | |
| flarum-extension-manager | v1.0.2 | |
| datlechin-simple-tour-guide | v0.0.1 | |
| datlechin-offline-indicator | v0.1.0 | |
| datlechin-keyboard-shortcuts | v0.1.1 | |
| datlechin-discussion-overview | v0.0.1 | |
| club-1-cross-references | v1.1.1 | |
| clarkwinkelmann-who-read | 1.4.1 | |
| clarkwinkelmann-post-stream-search | 1.1.0 | |
| blomstra-turnstile | 0.1.4 | |
| blomstra-sort-order-toggle | 0.2.0 | |
| blomstra-database-queue | 1.1.0 | |
| blomstra-cache-assets | 0.5 | |
| betterflarum-bettermobiledrawer | 2.2.0 | |
| askvortsov-pwa | v3.3.3 | |
| askvortsov-markdown-tables | v1.2.1 | |
| askvortsov-help-tags | v1.1.0 | |
| askvortsov-checklist | v1.3.1 | |
| acpl-lscache | v2.3.1 | |
+------------------------------------+---------+--------+
Base URL: https://support.bw.agency
Installation path: /home/samsunek/support.bw.agency
Queue driver: database
Session driver: file
Scheduler status: Aktif
Mail driver: smtp
Debug mode: off9 days later
tolgaaaltas I'm unable to reproduce this issue. Can you please create a new issue in GitHub and fill out the bug report? Thanks!
7 months later
Hi there,
Is this supposed to split from a selected post to a new discussion and move the posts after it along as well?
I tried it, and it moved the selected post, but all posts after it remained untouched.
Extension version 1.1.1, Flarum version 1.8.5
MikeLundahl you should be able to select a custom range of posts, by clicking the "split to here" button after the desired end post. It doesn't have to be the last post of the discussion.
clarkwinkelmann Ah yes..! you are right! I'm blind... Didn't see the "Split to here" button. That makes sense.. thanks!