Fabrik
Authoring & Content
Content Construction
https://extensions.joomla.org/extension/fabrik/
https://fabrikar.com/
Sim
https://fabrikar.com/forums/index.php?wiki/index/
http://www.jpqnedti.com.br/curso-fabrik/01-introducao
Aqui para esse site e por conta do Helix Ultimate, fiz esses overrides:

.input-mini {
width:80px!important;
}
.nav li {
padding-right: 12px;
}
textarea.fabrikinput {
width: 100%;
}
.fabrikDataContainer {
padding-top: 12px;
}
.fabrikLabel {
font-size: 1em;
font-weight: 500;
color: #F58634;
padding-top: 14px;
}
.pagination-list {
display: flex;
list-style: none;
padding: 0px;
}
.pagination-start {
padding-right: 5px;
}
.pagination-prev {
padding-right: 5px;
}
.pagination-next {
padding-right: 5px;
padding-left: 5px;
}
div.pagination ul.pagination-list li a {
padding: 2px 8px;
border: 1px solid black;
}
div.pagination ul.pagination-list li.active a {
color:red;
}