About 1. Are we talking about this:
https://cldup.com/p00vWmeNFl.png
Because if that’s the case, BuddyPress doesn’t provide a title attribute into its navigation API. So it seems difficult to accomplish as there’s no hover text at all.
About 2. The only ‘do_action’ available in BuddyPress is after the delete button unfortunately. So unless you’re doing some funky stuff in JS, or override the activity entry into your theme, seems difficult to accomplish.
About 3. I guess you can always use specific CSS rules.
About 4. From the BuddyPress options you can use a unique Reactions subnav. Else you can always use this kind of code:
function bryanbatcher_hide_subnav() {
if ( ! function_exists( 'bp_reactions' ) ) {
return;
}
bp_reactions()->temp_hide = array( 'favorite' => true );
foreach ( bp_reactions()->temp_hide as $key => $hide ) {
if ( ! isset( bp_reactions()->reactions[ $key ] ) ) {
continue;
}
bp_reactions()->temp_hide[ $key ] = bp_reactions()->reactions[ $key ];
unset( bp_reactions()->reactions[ $key ] );
}
}
add_action( 'bp_activity_setup_nav', 'bryanbatcher_hide_subnav', 9 );
function bryanbatcher_restore_reactions() {
if ( ! function_exists( 'bp_reactions' ) ) {
return;
}
bp_reactions()->reactions = array_merge( bp_reactions()->reactions, bp_reactions()->temp_hide );
}
add_action( 'bp_activity_setup_nav', 'bryanbatcher_restore_reactions', 11 );
